文章
Dummer. ゛☀
2017年08月31日
Enterolobium earpod trees get their common name from unusual seed pods shaped like human ears. In this article, you’ll learn more about this unusual shade tree and where they like to grow, so read on for more earpod tree info.
What is an Earpod Tree?
Earpod trees (Enterolobium cyclocarpum), also called ear trees, are tall shade trees with a wide, spreading canopy. The tree can grow 75 feet tall or more. The spiral pods measure 3 to 4 inches in diameter.
Earpod trees are native to Central America and northern parts of South America, and have been introduced to the Southern tips of North America. They prefer a climate with both a humid and dry season, but they will grow in any amount of humidity.
The trees are deciduous, dropping their leaves during the dry season. They bloom before they leaf out, when the rainy season begins. The pods that follow the flowers take a year to ripen and fall from the tree the following year. Costa Rica adopted the earpod as its national tree because of its many uses. It provides both shade and food. People roast the seeds and eat them, and the whole pod serves as a nutritious food for cattle. Growing earpod trees on coffee plantations provide coffee plants with just the right amount of shade, and the trees serve as habitat for many species of reptiles, birds, and insects. The wood resists termite and fungi, and is used to make paneling and veneer.
Enterolobium Earpod Tree Info
Earpod trees aren’t suited to home landscapes because of their size, but they might make good shade trees in parks and playgrounds in warm, tropical climates. Even so, they have a few traits that make them undesirable, especially in southeastern coastal areas. Earpod trees have weak, brittle branches that break easily in strong winds. They aren’t well-suited for coastal areas because they don’t tolerate salt spray or salty soil. The parts of the U.S. with a warm enough climate often experience hurricanes, which can blow over an Enterolobium ear tree. The pods that fall from the tree are messy and require regular cleanup. They are large and hard enough to cause a turned ankle when you step on them. They may grow best in the Southwest where there is a distinct wet and dry season and hurricanes are infrequent.
Earpod Tree Care
Earpod trees need a frost-free climate and a location with full sun and well-drained soil. They don’t compete well with weeds for moisture and nutrients. Eliminate the weeds in the planting site and use a generous layer of mulch to prevent weeds from sprouting. Like most members of the legume (bean and pea) family, earpod trees can extract nitrogen from the air. This ability means that they don’t need regular fertilization. The trees are very easy to grow because they don’t need fertilizer or supplemental water.
What is an Earpod Tree?
Earpod trees (Enterolobium cyclocarpum), also called ear trees, are tall shade trees with a wide, spreading canopy. The tree can grow 75 feet tall or more. The spiral pods measure 3 to 4 inches in diameter.
Earpod trees are native to Central America and northern parts of South America, and have been introduced to the Southern tips of North America. They prefer a climate with both a humid and dry season, but they will grow in any amount of humidity.
The trees are deciduous, dropping their leaves during the dry season. They bloom before they leaf out, when the rainy season begins. The pods that follow the flowers take a year to ripen and fall from the tree the following year. Costa Rica adopted the earpod as its national tree because of its many uses. It provides both shade and food. People roast the seeds and eat them, and the whole pod serves as a nutritious food for cattle. Growing earpod trees on coffee plantations provide coffee plants with just the right amount of shade, and the trees serve as habitat for many species of reptiles, birds, and insects. The wood resists termite and fungi, and is used to make paneling and veneer.
Enterolobium Earpod Tree Info
Earpod trees aren’t suited to home landscapes because of their size, but they might make good shade trees in parks and playgrounds in warm, tropical climates. Even so, they have a few traits that make them undesirable, especially in southeastern coastal areas. Earpod trees have weak, brittle branches that break easily in strong winds. They aren’t well-suited for coastal areas because they don’t tolerate salt spray or salty soil. The parts of the U.S. with a warm enough climate often experience hurricanes, which can blow over an Enterolobium ear tree. The pods that fall from the tree are messy and require regular cleanup. They are large and hard enough to cause a turned ankle when you step on them. They may grow best in the Southwest where there is a distinct wet and dry season and hurricanes are infrequent.
Earpod Tree Care
Earpod trees need a frost-free climate and a location with full sun and well-drained soil. They don’t compete well with weeds for moisture and nutrients. Eliminate the weeds in the planting site and use a generous layer of mulch to prevent weeds from sprouting. Like most members of the legume (bean and pea) family, earpod trees can extract nitrogen from the air. This ability means that they don’t need regular fertilization. The trees are very easy to grow because they don’t need fertilizer or supplemental water.
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文章
Dummer. ゛☀
2017年08月30日
Dogwood trees are often planted for the lovely spring flowers, but it can be frustrating when your dogwood tree is not blooming, especially when it looks healthy otherwise. It leaves a homeowner wondering “why would a dogwood tree not bloom?” There are a few reasons. Let’s look at what causes a dogwood to not blossom.
Reasons for a Dogwood Tree Not Blooming
Too Much Nitrogen
Many dogwood trees are planted in the middle of lawns and most lawn fertilizers are very high in nitrogen. Nitrogen is good for growth of leaves, which is why it makes a good lawn fertilizer, but too much nitrogen can stop a plant from flowering.
To correct this, stop using lawn fertilizer near your dogwood tree. Instead, use a balanced fertilizer or a fertilizer that is high in phosphorus.
Too Much or Too Little Sunlight
Dogwoods naturally grow on the edges of forests, which means that they spend part of their day in shade and part of their day in sunlight. If your dogwood tree spends all day in shade or all day in sun, the dogwood tree may not be able to bloom correctly. When you plant a dogwood tree, consider the type of sun it will be getting. Your dogwood tree should get about a half day of sun to really blossom properly. If you suspect sunlight may be the issue, consider moving the tree or improving the amount of light it gets.
Improper Pruning
A dogwood tree not blooming may be caused by improper pruning. Dogwood trees do not need to be pruned to keep them healthy, but if you are pruning them for shape, be sure that you only prune them after they have finished blooming. Pruning dogwoods at other times can remove the immature buds and cause the dogwood tree not to flower.
Cold Snaps and Temperature
On any ornamental flowering tree, the blossoms will be very tender to cold. It is no different for a dogwood trees’ flowers. A cold snap in early spring can kill all of the blossoms, but leave the rest of the tree looking healthy. Also, if your dogwood tree variety is not suited to your area, it may not be able to produce flowers due to the cold weather.
Lack of Water
If a dogwood tree does not get enough water, the dogwood tree may not bloom. Make sure that your dogwood tree gets at least 1 inch of water a week. If it does not get this much water a week from rainfall, supplement with a deep watering from the hose that extends to the edges of the canopy of the tree. The point of having a flowering dogwood tree in your yard is to see the dogwood tree flower in the spring. Making sure that your dogwood tree is getting the type of care it needs is the key to fixing a dogwood tree that will not bloom.
Reasons for a Dogwood Tree Not Blooming
Too Much Nitrogen
Many dogwood trees are planted in the middle of lawns and most lawn fertilizers are very high in nitrogen. Nitrogen is good for growth of leaves, which is why it makes a good lawn fertilizer, but too much nitrogen can stop a plant from flowering.
To correct this, stop using lawn fertilizer near your dogwood tree. Instead, use a balanced fertilizer or a fertilizer that is high in phosphorus.
Too Much or Too Little Sunlight
Dogwoods naturally grow on the edges of forests, which means that they spend part of their day in shade and part of their day in sunlight. If your dogwood tree spends all day in shade or all day in sun, the dogwood tree may not be able to bloom correctly. When you plant a dogwood tree, consider the type of sun it will be getting. Your dogwood tree should get about a half day of sun to really blossom properly. If you suspect sunlight may be the issue, consider moving the tree or improving the amount of light it gets.
Improper Pruning
A dogwood tree not blooming may be caused by improper pruning. Dogwood trees do not need to be pruned to keep them healthy, but if you are pruning them for shape, be sure that you only prune them after they have finished blooming. Pruning dogwoods at other times can remove the immature buds and cause the dogwood tree not to flower.
Cold Snaps and Temperature
On any ornamental flowering tree, the blossoms will be very tender to cold. It is no different for a dogwood trees’ flowers. A cold snap in early spring can kill all of the blossoms, but leave the rest of the tree looking healthy. Also, if your dogwood tree variety is not suited to your area, it may not be able to produce flowers due to the cold weather.
Lack of Water
If a dogwood tree does not get enough water, the dogwood tree may not bloom. Make sure that your dogwood tree gets at least 1 inch of water a week. If it does not get this much water a week from rainfall, supplement with a deep watering from the hose that extends to the edges of the canopy of the tree. The point of having a flowering dogwood tree in your yard is to see the dogwood tree flower in the spring. Making sure that your dogwood tree is getting the type of care it needs is the key to fixing a dogwood tree that will not bloom.
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文章
Dummer. ゛☀
2017年08月30日
Though dogwood trees are, for the most part, an easy to care for landscaping tree, they do have some pests. One of these pests is the dogwood borer. The dogwood borer rarely kills a tree in one season, but if left unchecked, these pests can eventually kill a dogwood tree, especially a young dogwood tree. Keep reading to learn the symptoms of dogwood borers and dogwood borer control.
Symptoms of Dogwood Borers
Most of the severe damage to dogwoods by this pest is caused by the dogwood borer larvae. Most often, dogwood borer larva will embed themselves in burrknots (lumps at the base of the trunk that were formed from undeveloped roots), in grafting collars or in healed bark wounds.
If a wound, grafting collar or knot becomes infested with dogwood borers, it may appear wet and will take on a reddish color. You may even see some bark fall away from these areas.
If the dogwood tree has a bad infestation of dogwood borers, there may even be large patches of healthy bark that will have a wet or damp look and may fall away from the tree easily. Other symptoms of dogwood borers include wilting of new growth, oddly colored leaves or leaves and branches that die off unexpectedly. In older trees that have been infested with dogwood borers for a long period of time, the bark higher up on the tree may crack and branches may break off. Dogwood borer larvae are pink or light orange in color and are about 3 to 5 inches long.
Dogwood Borer Control
Good dogwood borers organic control starts with proper care of dogwood trees. Do not plant dogwood trees in harsh, full sun as this weakens the dogwood tree and makes them more susceptible to the dogwood borer larvae. Dogwood borer larva are attracted to grafted dogwood trees, so either avoid grafted trees or keep a close eye on the base of these dogwood trees if you plant them. Prune your dogwood tree at the proper time. Do not prune your dogwood trees from April until June, as this will leave open wounds during their most active time, which attracts the dogwood borer.
Keep the base of your dogwood free of weeds where the dogwood borers can hide and be careful not to damage your dogwood tree with weed whackers when removing weeds. It is best to simply keep the base of your dogwood tree well mulched. This will not only keep weeds away from the base of the tree, but will keep moisture in the soil, which will make the tree healthier and better able to fight off dogwood borer larvae. If your dogwood tree become infested with dogwood borer larvae, proper dogwood borer control is to treat the base of the tree with insecticide in May. This is when the dogwood borer is most susceptible to dogwood borer insecticide. But, if you discover a dogwood borer infestation earlier or later than this and you would like to treat it immediately, you can. It will not be as effective, but will help reduce the number of dogwood borer larvae, which will reduce the amount of damage to the tree until you are able to treat the dogwood tree with dogwood borer insecticide.
If a dogwood tree is badly infested, it may be best to remove the tree to prevent it from infecting other dogwood trees in the area. While dogwood borers can become a serious problem, once you know how to treat for dogwood borer larva and damage, it becomes a much less damaging to your dogwood trees.
Symptoms of Dogwood Borers
Most of the severe damage to dogwoods by this pest is caused by the dogwood borer larvae. Most often, dogwood borer larva will embed themselves in burrknots (lumps at the base of the trunk that were formed from undeveloped roots), in grafting collars or in healed bark wounds.
If a wound, grafting collar or knot becomes infested with dogwood borers, it may appear wet and will take on a reddish color. You may even see some bark fall away from these areas.
If the dogwood tree has a bad infestation of dogwood borers, there may even be large patches of healthy bark that will have a wet or damp look and may fall away from the tree easily. Other symptoms of dogwood borers include wilting of new growth, oddly colored leaves or leaves and branches that die off unexpectedly. In older trees that have been infested with dogwood borers for a long period of time, the bark higher up on the tree may crack and branches may break off. Dogwood borer larvae are pink or light orange in color and are about 3 to 5 inches long.
Dogwood Borer Control
Good dogwood borers organic control starts with proper care of dogwood trees. Do not plant dogwood trees in harsh, full sun as this weakens the dogwood tree and makes them more susceptible to the dogwood borer larvae. Dogwood borer larva are attracted to grafted dogwood trees, so either avoid grafted trees or keep a close eye on the base of these dogwood trees if you plant them. Prune your dogwood tree at the proper time. Do not prune your dogwood trees from April until June, as this will leave open wounds during their most active time, which attracts the dogwood borer.
Keep the base of your dogwood free of weeds where the dogwood borers can hide and be careful not to damage your dogwood tree with weed whackers when removing weeds. It is best to simply keep the base of your dogwood tree well mulched. This will not only keep weeds away from the base of the tree, but will keep moisture in the soil, which will make the tree healthier and better able to fight off dogwood borer larvae. If your dogwood tree become infested with dogwood borer larvae, proper dogwood borer control is to treat the base of the tree with insecticide in May. This is when the dogwood borer is most susceptible to dogwood borer insecticide. But, if you discover a dogwood borer infestation earlier or later than this and you would like to treat it immediately, you can. It will not be as effective, but will help reduce the number of dogwood borer larvae, which will reduce the amount of damage to the tree until you are able to treat the dogwood tree with dogwood borer insecticide.
If a dogwood tree is badly infested, it may be best to remove the tree to prevent it from infecting other dogwood trees in the area. While dogwood borers can become a serious problem, once you know how to treat for dogwood borer larva and damage, it becomes a much less damaging to your dogwood trees.
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文章
Dummer. ゛☀
2017年08月30日
Flowering dogwood trees are a beautiful addition to any landscape. Unfortunately, this tree, like many others, is susceptible to attack from pests and disease that can cause damage and drastically shorten its life. Flowering dogwood problems such as disease and insects always hit weak or older trees first. The most common sign that your tree may be in trouble is when you notice the tree leaves dripping.
Why is My Dogwood Dripping Water?
Oftentimes, dogwood tree dripping, especially when watery in nature, is due to pests. Some of the most common pests that affect dogwoods and lead to tree leaves dripping include borers, scale, aphids and ants. Dogwood Borers – One very devastating problem with dogwood trees is dogwood borers, which are caterpillars that drill tunnels into the trunk of the tree. Weak and older trees are most susceptible to borers that leave wet areas on the bark early on. If you find your dogwood tree dripping sap, it may be a good indication that borers are at work. Once these damaging pests are inside a tree, they are very hard to eradicate.
Scale Insects – Scale insects are pesky little bugs that thrive on dogwood tree sap. They excrete a sugary liquid known as honeydew, which can down rain in large amounts and result in tree leaves dripping. Scale infestations are more damaging some years than others and seem to come in cycles. Using an insecticidal soap is an effective treatment for this problem. Tree Aphids – Aphids commonly affect ornamental trees and, like scale, will suck the sap from dogwoods. They also secrete honeydew, which can be recognized easily by a dogwood dripping water. Neem oil is a great way to control aphids on trees, or you can use a homemade solution of organic control as well.
Carpenter Ants and Rot – Some people may find their dogwood dripping water or the tree leaves dripping what appears to be water. It’s possible that carpenter ants and rot are causing this problem. These ants are so small that it is very hard to determine whether they are present or not. Carpenter ants feed on rotting wood. If there is a hole in the tree where water has accumulated, ants find plenty for dinner. Unfortunately, carpenter ants are very hard to get rid of once they are inside a tree. They dine on the inside of the tree, and the tree loses moisture through weeping. It is best to remove a tree that has carpenter ants before they move on to other trees in your landscape. Ants can also be found feasting on aphid honeydew, so check for these pests as well whenever you notice a dogwood tree dripping.
Dogwood Tree Sap
Not all flowering dogwood problems are the result of pests or disease. Dogwood tree dripping can also be the result of improper pruning. Sometimes dogwood trees are injured by other causes, such as a storm damage.
Since dogwood trees are known to be “bleeders,” they respond to injury by releasing sap, which will flow freely from the injured site. This dogwood tree sap is what is used to produce flowers and the tree must be left alone to heal. Always prune your dogwood trees in early summer to avoid injury and prune out any weak or older branches.
Why is My Dogwood Dripping Water?
Oftentimes, dogwood tree dripping, especially when watery in nature, is due to pests. Some of the most common pests that affect dogwoods and lead to tree leaves dripping include borers, scale, aphids and ants. Dogwood Borers – One very devastating problem with dogwood trees is dogwood borers, which are caterpillars that drill tunnels into the trunk of the tree. Weak and older trees are most susceptible to borers that leave wet areas on the bark early on. If you find your dogwood tree dripping sap, it may be a good indication that borers are at work. Once these damaging pests are inside a tree, they are very hard to eradicate.
Scale Insects – Scale insects are pesky little bugs that thrive on dogwood tree sap. They excrete a sugary liquid known as honeydew, which can down rain in large amounts and result in tree leaves dripping. Scale infestations are more damaging some years than others and seem to come in cycles. Using an insecticidal soap is an effective treatment for this problem. Tree Aphids – Aphids commonly affect ornamental trees and, like scale, will suck the sap from dogwoods. They also secrete honeydew, which can be recognized easily by a dogwood dripping water. Neem oil is a great way to control aphids on trees, or you can use a homemade solution of organic control as well.
Carpenter Ants and Rot – Some people may find their dogwood dripping water or the tree leaves dripping what appears to be water. It’s possible that carpenter ants and rot are causing this problem. These ants are so small that it is very hard to determine whether they are present or not. Carpenter ants feed on rotting wood. If there is a hole in the tree where water has accumulated, ants find plenty for dinner. Unfortunately, carpenter ants are very hard to get rid of once they are inside a tree. They dine on the inside of the tree, and the tree loses moisture through weeping. It is best to remove a tree that has carpenter ants before they move on to other trees in your landscape. Ants can also be found feasting on aphid honeydew, so check for these pests as well whenever you notice a dogwood tree dripping.
Dogwood Tree Sap
Not all flowering dogwood problems are the result of pests or disease. Dogwood tree dripping can also be the result of improper pruning. Sometimes dogwood trees are injured by other causes, such as a storm damage.
Since dogwood trees are known to be “bleeders,” they respond to injury by releasing sap, which will flow freely from the injured site. This dogwood tree sap is what is used to produce flowers and the tree must be left alone to heal. Always prune your dogwood trees in early summer to avoid injury and prune out any weak or older branches.
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文章
Dummer. ゛☀
2017年08月30日
A harbinger of spring in parts of the country that enjoy mild winters, flowering dogwood trees boast an abundance of pink, white or red flowers long before the first leaves appear in spring. Since they grow only 15 to 30 feet tall, there is room for a dogwood tree in almost any landscape. They seldom need pruning, but when the need does arise, correct dogwood tree pruning leads to a healthier, more attractive tree.
When to Trim a Dogwood Tree
Part of proper dogwood pruning involves knowing when to trim a dogwood tree. In areas where boring insects are a problem, never prune a dogwood tree in spring. The wounds created by pruning cuts provide an entry point for these devastating insects. In addition, if pruned while the tree is actively growing in spring and summer, the wounds bleed copious amounts of messy sap. Therefore, the best time to prune a dogwood tree is in late fall and winter while the tree is dormant.
Dogwood Tree Pruning Info
Dogwood trees have a naturally attractive shape and don’t require routine pruning, but there are some circumstances where pruning and trimming dogwood trees becomes necessary. Pruning a dogwood tree when these situations arise helps prevent insects and disease from infesting the tree and allows for better growth and shape. Before pruning a dogwood tree, you should be aware that removing large branches can damage the trunk if the heavy branch breaks away and tears down the trunk as you begin to cut. Therefore, you should remove branches larger than two inches in diameter by making three cuts to prevent tearing.
Make the first cut on the underside of the branch, 6 to 12 inches out from the trunk of the tree. Cut only one-third of the way through the branch. Make the second cut about an inch beyond the first one, cutting completely through the branch. Make the third cut at the collar of the branch to remove the stub. The collar is the swollen area of the branch near the trunk.
How to Prune a Flowering Dogwood Tree
When you’re ready for trimming dogwood trees in your yard, it also helps to know a little bit about when and how to prune a flowering dogwood tree. Remove damaged, diseased or dead branches at the collar. These branches are unsightly and provide an entry point for insects and disease. Remove undersized twigs and branches that detract from the shape of the tree to open up the canopy for better air circulation and to let in sunlight. Suckers that grow at the base of a dogwood tree use energy that the tree needs for proper growth. Remove them as close to the roots as possible. The lower limbs on a dogwood tree sometimes hang so low that you can’t mow under the tree or enjoy the shade it provides. Remove low-hanging branches at the collar.
When two branches cross and rub together, they create wounds that allow insects and diseases to gain a foothold. Remove the least desirable of the two crossing branches. Now that you know the basics of dogwood tree pruning, you can enjoy your trees without the worry of them becoming unsightly or sick.
When to Trim a Dogwood Tree
Part of proper dogwood pruning involves knowing when to trim a dogwood tree. In areas where boring insects are a problem, never prune a dogwood tree in spring. The wounds created by pruning cuts provide an entry point for these devastating insects. In addition, if pruned while the tree is actively growing in spring and summer, the wounds bleed copious amounts of messy sap. Therefore, the best time to prune a dogwood tree is in late fall and winter while the tree is dormant.
Dogwood Tree Pruning Info
Dogwood trees have a naturally attractive shape and don’t require routine pruning, but there are some circumstances where pruning and trimming dogwood trees becomes necessary. Pruning a dogwood tree when these situations arise helps prevent insects and disease from infesting the tree and allows for better growth and shape. Before pruning a dogwood tree, you should be aware that removing large branches can damage the trunk if the heavy branch breaks away and tears down the trunk as you begin to cut. Therefore, you should remove branches larger than two inches in diameter by making three cuts to prevent tearing.
Make the first cut on the underside of the branch, 6 to 12 inches out from the trunk of the tree. Cut only one-third of the way through the branch. Make the second cut about an inch beyond the first one, cutting completely through the branch. Make the third cut at the collar of the branch to remove the stub. The collar is the swollen area of the branch near the trunk.
How to Prune a Flowering Dogwood Tree
When you’re ready for trimming dogwood trees in your yard, it also helps to know a little bit about when and how to prune a flowering dogwood tree. Remove damaged, diseased or dead branches at the collar. These branches are unsightly and provide an entry point for insects and disease. Remove undersized twigs and branches that detract from the shape of the tree to open up the canopy for better air circulation and to let in sunlight. Suckers that grow at the base of a dogwood tree use energy that the tree needs for proper growth. Remove them as close to the roots as possible. The lower limbs on a dogwood tree sometimes hang so low that you can’t mow under the tree or enjoy the shade it provides. Remove low-hanging branches at the collar.
When two branches cross and rub together, they create wounds that allow insects and diseases to gain a foothold. Remove the least desirable of the two crossing branches. Now that you know the basics of dogwood tree pruning, you can enjoy your trees without the worry of them becoming unsightly or sick.
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文章
Dummer. ゛☀
2017年08月30日
Dogwoods are among the most beautiful trees found in American landscapes, but not all types are suitable for the garden. Find out about the different kinds of dogwood trees in this article.
Dog Tree Types
Of the 17 species of dogwood native to North America, the four most common garden types are native flowering dogwoods, Pacific dogwood, Cornelian cherry dogwood and kousa dogwoods. The latter two are introduced species that have earned a place in American gardens because they are more disease resistant than native species.
Other native species are best left in the wild because of their coarse texture or unruly habit. Let’s look at the four different types of dogwood trees best suited to cultivated landscapes.
Flowering Dogwood
Of all the varieties of dogwood, gardeners are most familiar with the flowering dogwood (Cornus florida). This beautiful tree is interesting all year, with pink or white flowers in late winter or early spring, followed by attractive green foliage. In late summer, the leaves turn dark red, and bright red berries appear in place of the flowers. The berries are an important food for several types of wildlife, including many species of songbirds. In the winter, the tree has an attractive silhouette with small buds at the tips of the branches. Flowering dogwoods grow to between 12 and 20 feet tall with a trunk diameter of 6 to 12 inches. They thrive in sun or shade. Those in full sun are shorter with better leaf color, especially in the fall. In the shade, they may have poor fall color, but they have a more graceful, open canopy shape.
Native to the Eastern U.S., this handsome tree thrives in U.S. Department of Agriculture plant hardiness zones 5 through 9. Flowering dogwood is susceptible to anthracnose, a devastating and incurable disease that can kill the tree. In areas where anthracnose is a problem, plant kousa or Cornelian cherry dogwood instead.
Kousa Dogwood
Native to China, Japan and Korea, the kousa dogwood (Cornus kousa) is very similar to the flowering dogwood. The first difference you will notice is that the leaves appear before the flowers, and the tree flowers a couple of weeks later than the flowering dogwood. The fall fruit looks like raspberries, and it’s edible if you can tolerate the mealy texture. If you’re going to plant near a patio, flowering dogwood may be a better choice because the kousa’s berries create a litter problem. It tolerates the cooler temperatures of zones 4 through 8. There are several noteworthy hybrids of C. florida and C. kousa.
Pacific Dogwood
Pacific dogwood (Cornus nuttallii) grows on the West Coast in a band between San Francisco and British Columbia. Unfortunately, it doesn’t thrive in the east. It’s a taller and more upright tree than the flowering dogwood. Pacific dogwood thrives in USDA zones 6b through 9a.
Cornelian Cherry Dogwood
Cornelian cherry dogwood (Cornus mas) is a European species that thrives in zones 5 through 8, although it looks ragged by the end of the season in areas with hot summers. You can grow it as a small tree or a tall, multi-stemmed shrub. It reaches heights of 15 to 20 feet. It blooms in late winter or very early spring, with the yellow blossoms making their appearance before early spring-bloomers such as forsythia. You can use the cherry-like fruit in preserves.
Dog Tree Types
Of the 17 species of dogwood native to North America, the four most common garden types are native flowering dogwoods, Pacific dogwood, Cornelian cherry dogwood and kousa dogwoods. The latter two are introduced species that have earned a place in American gardens because they are more disease resistant than native species.
Other native species are best left in the wild because of their coarse texture or unruly habit. Let’s look at the four different types of dogwood trees best suited to cultivated landscapes.
Flowering Dogwood
Of all the varieties of dogwood, gardeners are most familiar with the flowering dogwood (Cornus florida). This beautiful tree is interesting all year, with pink or white flowers in late winter or early spring, followed by attractive green foliage. In late summer, the leaves turn dark red, and bright red berries appear in place of the flowers. The berries are an important food for several types of wildlife, including many species of songbirds. In the winter, the tree has an attractive silhouette with small buds at the tips of the branches. Flowering dogwoods grow to between 12 and 20 feet tall with a trunk diameter of 6 to 12 inches. They thrive in sun or shade. Those in full sun are shorter with better leaf color, especially in the fall. In the shade, they may have poor fall color, but they have a more graceful, open canopy shape.
Native to the Eastern U.S., this handsome tree thrives in U.S. Department of Agriculture plant hardiness zones 5 through 9. Flowering dogwood is susceptible to anthracnose, a devastating and incurable disease that can kill the tree. In areas where anthracnose is a problem, plant kousa or Cornelian cherry dogwood instead.
Kousa Dogwood
Native to China, Japan and Korea, the kousa dogwood (Cornus kousa) is very similar to the flowering dogwood. The first difference you will notice is that the leaves appear before the flowers, and the tree flowers a couple of weeks later than the flowering dogwood. The fall fruit looks like raspberries, and it’s edible if you can tolerate the mealy texture. If you’re going to plant near a patio, flowering dogwood may be a better choice because the kousa’s berries create a litter problem. It tolerates the cooler temperatures of zones 4 through 8. There are several noteworthy hybrids of C. florida and C. kousa.
Pacific Dogwood
Pacific dogwood (Cornus nuttallii) grows on the West Coast in a band between San Francisco and British Columbia. Unfortunately, it doesn’t thrive in the east. It’s a taller and more upright tree than the flowering dogwood. Pacific dogwood thrives in USDA zones 6b through 9a.
Cornelian Cherry Dogwood
Cornelian cherry dogwood (Cornus mas) is a European species that thrives in zones 5 through 8, although it looks ragged by the end of the season in areas with hot summers. You can grow it as a small tree or a tall, multi-stemmed shrub. It reaches heights of 15 to 20 feet. It blooms in late winter or very early spring, with the yellow blossoms making their appearance before early spring-bloomers such as forsythia. You can use the cherry-like fruit in preserves.
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Dummer. ゛☀
2017年08月30日
Propagating dogwood cuttings is easy and inexpensive. You can easily make enough trees for your own landscape, and a few more to share with friends. For the home gardener, the easiest and fastest method of dogwood tree propagation is taking softwood cuttings. Find out how to grow dogwood cuttings in this article.
Propagating Dogwood Cuttings
Knowing when to take cuttings of dogwood stems can mean the difference between successful propagation and failure. The best time to cut is in the spring, as soon as the tree completes its bloom cycle. You know the stem is ready to cut if it snaps when you bend it in half.
Cuttings aren’t always successful, so take more than you need. The cuttings should be three to five inches long. Make the cut about an inch below a set of leaves. As you take cuttings, lay them in a plastic basin lined with damp paper towels and cover them with another damp towel.
Here are the steps in starting dogwoods from cuttings:
Remove the bottom set of leaves from the stem. This creates wounds to let the rooting hormone in and encourage root growth. Cut the remaining leaves in half if they are long enough to touch the soil when you bury the end of the stem 1.5 inches deep. Keeping the leaves off the soil prevents rot, and shorter leaf surfaces lose less water.
Fill a three-inch pot with rooting medium. You can buy commercial medium or use a mixture of sand and perlite. Don’t use regular potting soil, which holds too much moisture and causes the stem to rot before it roots. Moisten the rooting medium with water. Role or dip the bottom 1.5 inches of the stem in rooting hormone and tap it to remove the excess.
Stick the lower 1.5 inches of the stem in the rooting medium and then firm the medium so that the stems stand straight. Mist the cutting with water. Place the potted cutting inside a large plastic bag and seal it to create a mini greenhouse. Make sure the leaves don’t touch the sides of the bag. If necessary, you can hold the bag away from the plant by placing clean wooden sticks around the edge of the pot. Check the dogwood cutting for roots once a week. You can look at the bottom of the pot to see if roots are coming through or give the stem a gentle tug. Once roots form, the stem will resist a tug. You should find that the cutting has roots within six weeks.
Remove the plastic bag when you’re sure you have roots, and place the new plant in a sunny window. Keep the soil moist at all times. Use half-strength liquid fertilizer every two weeks until the plant is growing well. When the dogwood cutting outgrows its little pot, repot it into a larger pot filled with regular potting soil.
Propagating Dogwood Cuttings
Knowing when to take cuttings of dogwood stems can mean the difference between successful propagation and failure. The best time to cut is in the spring, as soon as the tree completes its bloom cycle. You know the stem is ready to cut if it snaps when you bend it in half.
Cuttings aren’t always successful, so take more than you need. The cuttings should be three to five inches long. Make the cut about an inch below a set of leaves. As you take cuttings, lay them in a plastic basin lined with damp paper towels and cover them with another damp towel.
Here are the steps in starting dogwoods from cuttings:
Remove the bottom set of leaves from the stem. This creates wounds to let the rooting hormone in and encourage root growth. Cut the remaining leaves in half if they are long enough to touch the soil when you bury the end of the stem 1.5 inches deep. Keeping the leaves off the soil prevents rot, and shorter leaf surfaces lose less water.
Fill a three-inch pot with rooting medium. You can buy commercial medium or use a mixture of sand and perlite. Don’t use regular potting soil, which holds too much moisture and causes the stem to rot before it roots. Moisten the rooting medium with water. Role or dip the bottom 1.5 inches of the stem in rooting hormone and tap it to remove the excess.
Stick the lower 1.5 inches of the stem in the rooting medium and then firm the medium so that the stems stand straight. Mist the cutting with water. Place the potted cutting inside a large plastic bag and seal it to create a mini greenhouse. Make sure the leaves don’t touch the sides of the bag. If necessary, you can hold the bag away from the plant by placing clean wooden sticks around the edge of the pot. Check the dogwood cutting for roots once a week. You can look at the bottom of the pot to see if roots are coming through or give the stem a gentle tug. Once roots form, the stem will resist a tug. You should find that the cutting has roots within six weeks.
Remove the plastic bag when you’re sure you have roots, and place the new plant in a sunny window. Keep the soil moist at all times. Use half-strength liquid fertilizer every two weeks until the plant is growing well. When the dogwood cutting outgrows its little pot, repot it into a larger pot filled with regular potting soil.
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Dummer. ゛☀
2017年08月30日
Flowering dogwoods are native to most areas of the eastern United States. They are useful as understory trees for partially shaded locations or even a fully sunny site, but often planted in improper locations and require transplanting. Can dogwood trees be transplanted? They certainly can, but follow a few tips on when to move a dogwood and how to do it correctly beforehand.
Can Dogwood Trees be Transplanted?
Dogwoods are lovely plants with four seasons of interest. Their characteristic flowers are actually bracts, or modified leaves, which surround the actual tiny flower. In fall the leaves turn red and orange and bright red fruits form, which birds adore. Their year-round beauty is a boon to any garden and should be preserved.
If a dogwood needs to be moved, choose a site that is suitable so it doesn’t need to be moved again. The trees do well in dappled light in well-drained soil that is moderately acidic. Consider the height of the tree and avoid power lines and sidewalks. It is common to misgauge the height or width of a foundation plant, requiring the need to move it. Dogwoods also often fail to flower because over story trees have gotten so dense there isn’t enough light to fuel blooms. Whatever the cause, you need to know a few tricks for transplanting dogwoods.
When to Move a Dogwood
Dogwood tree transplanting should be done when they are dormant. This would be when the leaves have dropped and before bud break. Provided your soil is workable, this could be in the middle of winter, but northern gardeners will have to wait until early spring. Transplanting dogwoods earlier can damage the plant’s health because the sap is actively running and any injury to the roots can invite rot and disease, or even girdle the plant.
How to Transplant a Dogwood Tree
A good idea to maximize the health of the tree and prevent transplant shock is to root prune. This is done the season before you will move the tree. Prune the roots in October for an early spring transplant. Cut a trench around the root zone that you desire, severing any roots outside the circle. The size of the root ball varies dependent on the size of the tree. Clemson Cooperative Extension has a root ball sizing table available online. After the winter season is nearly over, it is time to transplant the tree. Tie up any errant growth to protect branches. It is a good idea to dig the hole first, but if you don’t, wrap the root ball in moist burlap. Use a sharp spade to cut around the area where you root pruned and then under-cut the tree at a 45-degree angle.
Place the soil and root ball on the burlap and tie it around the base of the trunk. Dig the hole twice as large and twice as deep as the root ball with a hill of dirt at the center base. Unwrap the tree and spread the roots out. Back fill, taking care to use the substrate soil first and then the topsoil. Pack the soil around the roots. A good method is to water in the soil so it sinks around the roots. Fill up to the original soil line and water well to pack the soil.
Back fill, taking care to use the substrate soil first and then the topsoil. Pack the soil around the roots. A good method is to water in the soil so it sinks around the roots. Fill up to the original soil line and water well to pack the soil. Keep the tree well watered until it establishes. Don’t panic if it loses a few leaves, as it will perk up in no time.
Can Dogwood Trees be Transplanted?
Dogwoods are lovely plants with four seasons of interest. Their characteristic flowers are actually bracts, or modified leaves, which surround the actual tiny flower. In fall the leaves turn red and orange and bright red fruits form, which birds adore. Their year-round beauty is a boon to any garden and should be preserved.
If a dogwood needs to be moved, choose a site that is suitable so it doesn’t need to be moved again. The trees do well in dappled light in well-drained soil that is moderately acidic. Consider the height of the tree and avoid power lines and sidewalks. It is common to misgauge the height or width of a foundation plant, requiring the need to move it. Dogwoods also often fail to flower because over story trees have gotten so dense there isn’t enough light to fuel blooms. Whatever the cause, you need to know a few tricks for transplanting dogwoods.
When to Move a Dogwood
Dogwood tree transplanting should be done when they are dormant. This would be when the leaves have dropped and before bud break. Provided your soil is workable, this could be in the middle of winter, but northern gardeners will have to wait until early spring. Transplanting dogwoods earlier can damage the plant’s health because the sap is actively running and any injury to the roots can invite rot and disease, or even girdle the plant.
How to Transplant a Dogwood Tree
A good idea to maximize the health of the tree and prevent transplant shock is to root prune. This is done the season before you will move the tree. Prune the roots in October for an early spring transplant. Cut a trench around the root zone that you desire, severing any roots outside the circle. The size of the root ball varies dependent on the size of the tree. Clemson Cooperative Extension has a root ball sizing table available online. After the winter season is nearly over, it is time to transplant the tree. Tie up any errant growth to protect branches. It is a good idea to dig the hole first, but if you don’t, wrap the root ball in moist burlap. Use a sharp spade to cut around the area where you root pruned and then under-cut the tree at a 45-degree angle.
Place the soil and root ball on the burlap and tie it around the base of the trunk. Dig the hole twice as large and twice as deep as the root ball with a hill of dirt at the center base. Unwrap the tree and spread the roots out. Back fill, taking care to use the substrate soil first and then the topsoil. Pack the soil around the roots. A good method is to water in the soil so it sinks around the roots. Fill up to the original soil line and water well to pack the soil.
Back fill, taking care to use the substrate soil first and then the topsoil. Pack the soil around the roots. A good method is to water in the soil so it sinks around the roots. Fill up to the original soil line and water well to pack the soil. Keep the tree well watered until it establishes. Don’t panic if it loses a few leaves, as it will perk up in no time.
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文章
Dummer. ゛☀
2017年08月30日
Dogwoods are native ornamental trees. Most flower and fruit, and have dazzling fall displays as the leaves change color. Peeling bark on dogwoods may be the result of serious disease or it could be a natural condition in some species. Knowing the species of your tree is crucial to deciding if a dogwood with peeling bark is in danger or if it is a normal occurrence. Dogwood is both a native and introduced species across North America, especially the cooler climates. The plants may be trees or shrubs in form, but all of them offer extraordinary color and many of them flower.
Many of the varieties are deciduous and provide a rich fall color display followed by bright green, yellow, coral and orange revealed stems. They are quite winter hardy but are sensitive to mechanical injury and a variety of pests and diseases. For this reason, the tree bark flaking on dogwood trees may be the result of a canker, borer, string trimmer or fungal disease, to name but a few.
When a Dogwood with Peeling Bark is Normal
The Kousa dogwood is an ornamental tree that is more cold tolerant than flowering dogwood. It has bark which peels off in irregular patches, revealing a mosaic of mottled colors underneath. The dogwood bark peeling off is part of this tree’s appeal, along with its winter interest and fall display of purple leaves. Other times that peeling bark on dogwoods may be normal is when it occurs due to wild herbivores rubbing their antlers or standing on the trunk. Small rodents may also chew on trunks and cause sloughing bark. None of these conditions are good for the tree but would be categorized as wildlife problems and completely normal in certain regions. Sunscald on young trees may also result in peeling bark. It is a good idea to site them where winter sun won’t be aggressive or paint the trunk with latex paint thinned with water. Drought conditions can cause cracked bark near the base. This condition is easily corrected by giving the plant supplemental moisture.
Dogwood Tree Bark is Peeling Due to Disease
Dogwood anthracnose is a common disease in the Cornus genus. It causes yellow leaves and twig dieback, as well as sunken discolored areas of tissue. These are common symptoms of branch and crown canker as well. Basal trunk canker will cause splitting and some loss of bark. It also presents with lesions in the tree that weep sap and can seriously affect the health of the tree. It is best to consult an arborist for either of these diseases which cause peeling bark on dogwoods.
Pests that Cause Tree Bark Flaking on Dogwood
Dogwood bark peeling off may be the result of tiny insects that do more harm than good. The dogwood twig borer is a nasty pest that gets into the vascular tissue of the tree and undermines the tissue. It lives in the tree’s tissue and causes bark upheaval in infested locations. These invasive creatures may be difficult to detect until widespread damage is done because they hide away from investigative eyes inside the plant. Other borers, like the apple tree borer, also appear to favor Cornus trees and cause similar damage.
Scale insects in high concentration may make it appear that the dogwood bark is peeling. This is because when they mass on a stem, they seem like hard-bodied scabs which can be easily flicked off with a fingernail. They have the appearance of damaged bark but are actually insects subject to pesticides and manual removal.
Many of the varieties are deciduous and provide a rich fall color display followed by bright green, yellow, coral and orange revealed stems. They are quite winter hardy but are sensitive to mechanical injury and a variety of pests and diseases. For this reason, the tree bark flaking on dogwood trees may be the result of a canker, borer, string trimmer or fungal disease, to name but a few.
When a Dogwood with Peeling Bark is Normal
The Kousa dogwood is an ornamental tree that is more cold tolerant than flowering dogwood. It has bark which peels off in irregular patches, revealing a mosaic of mottled colors underneath. The dogwood bark peeling off is part of this tree’s appeal, along with its winter interest and fall display of purple leaves. Other times that peeling bark on dogwoods may be normal is when it occurs due to wild herbivores rubbing their antlers or standing on the trunk. Small rodents may also chew on trunks and cause sloughing bark. None of these conditions are good for the tree but would be categorized as wildlife problems and completely normal in certain regions. Sunscald on young trees may also result in peeling bark. It is a good idea to site them where winter sun won’t be aggressive or paint the trunk with latex paint thinned with water. Drought conditions can cause cracked bark near the base. This condition is easily corrected by giving the plant supplemental moisture.
Dogwood Tree Bark is Peeling Due to Disease
Dogwood anthracnose is a common disease in the Cornus genus. It causes yellow leaves and twig dieback, as well as sunken discolored areas of tissue. These are common symptoms of branch and crown canker as well. Basal trunk canker will cause splitting and some loss of bark. It also presents with lesions in the tree that weep sap and can seriously affect the health of the tree. It is best to consult an arborist for either of these diseases which cause peeling bark on dogwoods.
Pests that Cause Tree Bark Flaking on Dogwood
Dogwood bark peeling off may be the result of tiny insects that do more harm than good. The dogwood twig borer is a nasty pest that gets into the vascular tissue of the tree and undermines the tissue. It lives in the tree’s tissue and causes bark upheaval in infested locations. These invasive creatures may be difficult to detect until widespread damage is done because they hide away from investigative eyes inside the plant. Other borers, like the apple tree borer, also appear to favor Cornus trees and cause similar damage.
Scale insects in high concentration may make it appear that the dogwood bark is peeling. This is because when they mass on a stem, they seem like hard-bodied scabs which can be easily flicked off with a fingernail. They have the appearance of damaged bark but are actually insects subject to pesticides and manual removal.
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文章
Dummer. ゛☀
2017年08月30日
Dogwood trees are beautiful, iconic landscaping trees that come from the forest understory. Although they’re great for adding lots of curb appeal, they’ve got a few serious problems that can spoil the idyllic feel of your yard. It’s never good news when a tree gets sick, especially when it’s your stately dogwood tree. Dogwood tree blight, for example, is a fungal infection of dogwood trees that can turn these valuable visual assets into serious detriments. Read on to find out about dogwood tree blight and what you can do to help your plant through this rough time.
Dogwood Anthracnose Information
Dogwood blight, also known as dogwood anthracnose for the fungal pathogen that causes the disease, is a fairly new problem. It is believed to have started in the northeastern United States about 25 years ago, but has been spreading southward ever since. The early symptoms are similar to leaf spot diseases, with purple-bordered soft, wet spots appearing on leaves, especially around the margins. Once the disease spreads to leaf petioles and twigs, however, it becomes more obvious. Leaves attached to these infected areas will shrivel and turn black. In very advanced disease, lower branches may die, cankers may form on the limbs and trunk sprouts will increase in number.
Controlling Dogwood Blight
Dogwood blight control is difficult, but if you catch it early, you may be able to save the tree by cutting out all diseased tissues. That means all leaves, all twigs and all branches showing signs of infection must be removed and destroyed promptly. Small trees may be saved with a fungicide spray applied every 10 to 14 days as long as cool, moist weather persists. Prevention of dogwood blight is the best tool you’ve got to keep your landscaping trees healthy. Keeping your dogwood properly watered and fertilized is the first line of defense, two to four inches of mulch spread over the root zone will help maintain soil moisture. Removing spent leaves, pruning low branches, opening up a dense canopy and trimming water sprouts in the fall will create intolerable conditions for the fungus.
If you’ve lost a tree to dogwood blight, consider replacing it with Oriental dogwood (Cornus kousa). It has a high tolerance to anthracnose. White dogwoods seem to be less susceptible to the infection than their pink counterparts; there are also new cultivars of the Appalachian dogwood series that are bred to be anthracnose resistant. Whatever you do, don’t transplant a wild dogwood into the landscape – this is how many infections started.
Dogwood Anthracnose Information
Dogwood blight, also known as dogwood anthracnose for the fungal pathogen that causes the disease, is a fairly new problem. It is believed to have started in the northeastern United States about 25 years ago, but has been spreading southward ever since. The early symptoms are similar to leaf spot diseases, with purple-bordered soft, wet spots appearing on leaves, especially around the margins. Once the disease spreads to leaf petioles and twigs, however, it becomes more obvious. Leaves attached to these infected areas will shrivel and turn black. In very advanced disease, lower branches may die, cankers may form on the limbs and trunk sprouts will increase in number.
Controlling Dogwood Blight
Dogwood blight control is difficult, but if you catch it early, you may be able to save the tree by cutting out all diseased tissues. That means all leaves, all twigs and all branches showing signs of infection must be removed and destroyed promptly. Small trees may be saved with a fungicide spray applied every 10 to 14 days as long as cool, moist weather persists. Prevention of dogwood blight is the best tool you’ve got to keep your landscaping trees healthy. Keeping your dogwood properly watered and fertilized is the first line of defense, two to four inches of mulch spread over the root zone will help maintain soil moisture. Removing spent leaves, pruning low branches, opening up a dense canopy and trimming water sprouts in the fall will create intolerable conditions for the fungus.
If you’ve lost a tree to dogwood blight, consider replacing it with Oriental dogwood (Cornus kousa). It has a high tolerance to anthracnose. White dogwoods seem to be less susceptible to the infection than their pink counterparts; there are also new cultivars of the Appalachian dogwood series that are bred to be anthracnose resistant. Whatever you do, don’t transplant a wild dogwood into the landscape – this is how many infections started.
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Dummer. ゛☀
2017年08月30日
Crown canker is a fungal disease that attacks flowering dogwood trees. The disease, also known as collar rot, is caused by the pathogen Phytophthora cactorum. It can kill the trees it attacks or can leave them vulnerable to lethal attack by other pathogens. For more information on crown canker on dogwood trees, read on.
Dogwood Tree Diseases
Dogwood trees suffer from a variety of diseases and conditions, most of which result in only cosmetic damage. Some are caused by improper care, such as water stress, resulting from inadequate irrigation during dry periods. Other avoidable diseases include leafspot and sun scorch, which occur when this understory tree is planted in full sun.
However, two dogwood tree diseases are potentially lethal to the trees. Both are canker diseases. One, dogwood anthracnose canker, kills leaves, twigs and branches, starting in the lowest branches. It often kills the tree within three to five years.
The other deadly canker is known as crown canker of dogwood. Crown canker on dogwood trees is the most serious of the dogwood tree diseases in the eastern United States. It is caused by a canker that, over several years, girdles the tree and kills it. What are the first visible symptoms of crown canker on dogwood trees? You may not see the canker immediately on an infected tree. Look for undersized leaves of a lighter color than normal on a tree that appears stressed. Over time, twigs and branches die on one side of the tree as the disease spreads.
Dogwood Crown Canker Treatment
If you take steps to prevent dogwood tree bark problems, especially wounds, you are one step ahead of the game. Prevention of wounds is easier than dogwood crown canker treatment. As with many other canker diseases, crown canker of dogwood often enters through wounds on the base of the tree. Any dogwood tree bark problems that cause a break in the bark can allow in the disease. The most important step in dogwood crown canker treatment is prevention. Take care not to wound the tree with garden tools when you are transplanting it, or lawn mowers or weed whackers after it is planted. Insects or animals can also wound the tree bark and allow the disease to enter.
Once the fungus has infected a large section of the dogwood’s base, you can do nothing to save the tree. However, if only a small area is diseased, you can try to stop its spread by cutting out the canker, removing all discolored bark and sapwood and some 5 cm of healthy bark. Use a sharp knife to perform this excision. Protect the new wound from infections by painting the area with orange shellac. Use an asphalt-base wound paint on the exposed heartwood. If the tree dies anyway, don’t replace it with another dogwood.
Dogwood Tree Diseases
Dogwood trees suffer from a variety of diseases and conditions, most of which result in only cosmetic damage. Some are caused by improper care, such as water stress, resulting from inadequate irrigation during dry periods. Other avoidable diseases include leafspot and sun scorch, which occur when this understory tree is planted in full sun.
However, two dogwood tree diseases are potentially lethal to the trees. Both are canker diseases. One, dogwood anthracnose canker, kills leaves, twigs and branches, starting in the lowest branches. It often kills the tree within three to five years.
The other deadly canker is known as crown canker of dogwood. Crown canker on dogwood trees is the most serious of the dogwood tree diseases in the eastern United States. It is caused by a canker that, over several years, girdles the tree and kills it. What are the first visible symptoms of crown canker on dogwood trees? You may not see the canker immediately on an infected tree. Look for undersized leaves of a lighter color than normal on a tree that appears stressed. Over time, twigs and branches die on one side of the tree as the disease spreads.
Dogwood Crown Canker Treatment
If you take steps to prevent dogwood tree bark problems, especially wounds, you are one step ahead of the game. Prevention of wounds is easier than dogwood crown canker treatment. As with many other canker diseases, crown canker of dogwood often enters through wounds on the base of the tree. Any dogwood tree bark problems that cause a break in the bark can allow in the disease. The most important step in dogwood crown canker treatment is prevention. Take care not to wound the tree with garden tools when you are transplanting it, or lawn mowers or weed whackers after it is planted. Insects or animals can also wound the tree bark and allow the disease to enter.
Once the fungus has infected a large section of the dogwood’s base, you can do nothing to save the tree. However, if only a small area is diseased, you can try to stop its spread by cutting out the canker, removing all discolored bark and sapwood and some 5 cm of healthy bark. Use a sharp knife to perform this excision. Protect the new wound from infections by painting the area with orange shellac. Use an asphalt-base wound paint on the exposed heartwood. If the tree dies anyway, don’t replace it with another dogwood.
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Dummer. ゛☀
2017年08月30日
If you’ve ever seen an elaborate Japanese pagoda, you know how the structure’s roof spreads out in symmetrical layers. The branches of pagoda dogwood are dense and layered too, and pagoda dogwood information says the trees get their common names from this branch structure. Despite its common name, the pagoda dogwood is actually an American native shrub. For more pagoda dogwood information, including tips for pagoda dogwood care, read on.
Pagoda Dogwood Information
Pagoda dogwood (Cornus alternifolia) is a large shrub or small tree for a garden or backyard. Native to the American East, the pagoda dogwood is hardy in U.S. Department of Agriculture plant hardiness zones 3 through 7.
It is also an attractive plant. When you are growing pagoda dogwood trees, you’ll see that the branches are tiered and horizontal, turning up slightly at the tips. Pagoda dogwood information suggests that the blossoms are also a nice addition to a landscape. Although they are small, the creamy flowers are very fragrant and bloom in 2- to 3-inch groupings in late spring. These give way to berry-like drupes, the color of blueberries that appear on crimson stalks. The fruits mature in late summer. The long, oval leaves turn purple in autumn. This dogwood is of great benefit to wildlife. The flowers attract butterflies, and the dense foliage provides excellent nesting conditions for birds, while the drupes make meals for them too.
Pagoda Dogwood Growing Conditions
When you are growing pagodas, you’ll be particularly interested in tips about pagoda dogwood growing conditions. In fact, the trees have quite specific requirements. Ideal pagoda dogwood growing conditions include a sunny planting site that gets some shade during the heat of the afternoon. You’ll want to find a spot with moist, fertile soil. The soil should also be acidic and well drained. If you find a great planting location, growing pagoda dogwood trees requires less effort. That doesn’t mean that no pagoda dogwood care is required, however.
Pagoda dogwood information suggests that these plants require regular irrigation. This is especially important in areas that do not get precipitation in the summer. It also helps your pagoda dogwood if you mulch the root area regularly. This locks in the moisture and also stabilizes the soil temperature.
Pagoda Dogwood Information
Pagoda dogwood (Cornus alternifolia) is a large shrub or small tree for a garden or backyard. Native to the American East, the pagoda dogwood is hardy in U.S. Department of Agriculture plant hardiness zones 3 through 7.
It is also an attractive plant. When you are growing pagoda dogwood trees, you’ll see that the branches are tiered and horizontal, turning up slightly at the tips. Pagoda dogwood information suggests that the blossoms are also a nice addition to a landscape. Although they are small, the creamy flowers are very fragrant and bloom in 2- to 3-inch groupings in late spring. These give way to berry-like drupes, the color of blueberries that appear on crimson stalks. The fruits mature in late summer. The long, oval leaves turn purple in autumn. This dogwood is of great benefit to wildlife. The flowers attract butterflies, and the dense foliage provides excellent nesting conditions for birds, while the drupes make meals for them too.
Pagoda Dogwood Growing Conditions
When you are growing pagodas, you’ll be particularly interested in tips about pagoda dogwood growing conditions. In fact, the trees have quite specific requirements. Ideal pagoda dogwood growing conditions include a sunny planting site that gets some shade during the heat of the afternoon. You’ll want to find a spot with moist, fertile soil. The soil should also be acidic and well drained. If you find a great planting location, growing pagoda dogwood trees requires less effort. That doesn’t mean that no pagoda dogwood care is required, however.
Pagoda dogwood information suggests that these plants require regular irrigation. This is especially important in areas that do not get precipitation in the summer. It also helps your pagoda dogwood if you mulch the root area regularly. This locks in the moisture and also stabilizes the soil temperature.
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Dummer. ゛☀
2017年08月30日
Dogwoods are beautiful trees with striking spring flowers. They are impressive trees to have around, but not every gardener has the space or the means to take care of a large tree. Other gardeners may not live in a zone warm enough to overwinter a dogwood outside. With some skill and attention, though, you can keep a dogwood tree in a container. Keep reading to learn more about caring for potted dogwood trees.
Can I Grow Dogwood In a Container?
Can I grow dogwood in a container? Technically, yes. It’s possible, but there are certain requirements to be met, and it’s not for the casual gardener. Dogwood trees have very dense, fast growing root systems that are less than ideal for container growing. They also need extremely well-draining soil, but at the same time the plants need lots of water, particularly in the first few years of life. Containers dry out quickly, so you’ll probably have to mulch heavily and water it every day or so.
How to Grow Dogwoods in a Container
When growing dogwood trees in pots, it’s important to give the roots plenty of room. This means you should opt for as big of a container as you can manage. Even so, you’ll want to remove the tree from its container to prune the roots back on occasion to keep it from becoming root bound. Again, container grown dogwoods will require plenty of moisture so you’ll have to water the tree frequently. You can also add a bit of mulch to the top of the soil, which should help it retain some of that moisture.
Caring for potted dogwood trees in the winter is also tricky. The plants need cold temperatures in order to go dormant during the winter. If you want to bring it inside, it’s best to put it somewhere protected but unheated, like a shed or a garage.
Can I Grow Dogwood In a Container?
Can I grow dogwood in a container? Technically, yes. It’s possible, but there are certain requirements to be met, and it’s not for the casual gardener. Dogwood trees have very dense, fast growing root systems that are less than ideal for container growing. They also need extremely well-draining soil, but at the same time the plants need lots of water, particularly in the first few years of life. Containers dry out quickly, so you’ll probably have to mulch heavily and water it every day or so.
How to Grow Dogwoods in a Container
When growing dogwood trees in pots, it’s important to give the roots plenty of room. This means you should opt for as big of a container as you can manage. Even so, you’ll want to remove the tree from its container to prune the roots back on occasion to keep it from becoming root bound. Again, container grown dogwoods will require plenty of moisture so you’ll have to water the tree frequently. You can also add a bit of mulch to the top of the soil, which should help it retain some of that moisture.
Caring for potted dogwood trees in the winter is also tricky. The plants need cold temperatures in order to go dormant during the winter. If you want to bring it inside, it’s best to put it somewhere protected but unheated, like a shed or a garage.
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Dummer. ゛☀
2017年08月30日
Evergreen dogwoods are beautiful tall trees grown for their fragrant flowers and remarkable fruit. Keep reading to learn more Cornus capitata information, including tips on evergreen dogwood care and how to grow an evergreen dogwood tree.
Cornus Capitata Information
Evergreen dogwood trees (Cornus capitata) are hardy down to USDA zone 8. They are native to east and Southeast Asia but can be grown in warm climates all over the world. They can grow as high as 50 feet (15 m.) in height, though they tend to top out between 20 and 40 feet (6-12 m.). In the summer, they produce very fragrant flowers, which are very small and surrounded by 4 to 6 bracts that are often mistaken for petals. The bracts come in shades of white, yellow, and pink. These flowers give way to very distinctive fruits that are actually dozens of tiny fruits fused together. These fruits are pink to red, about an inch in diameter (2.5 cm.) and round but bumpy. They are edible and sweet, but they can cause a litter problem if the tree is planted near a walkway. The leaves are dark and evergreen, though they are sometimes known to turn red to purple and partially drop in autumn.
How to Grow an Evergreen Dogwood Tree
Like many dogwood varieties, evergreen dogwood trees can thrive in both sun and shade. They do best in moist, clay to loam soil. They prefer acidity, but they can tolerate light alkalinity. They need a lot of water.
The trees are monoecious, which means they can self-pollinate. It’s important to bear in mind, however, that they will not flower for 8 to 10 years if they are grown from seed. It’s best to start the trees from cuttings if you want to see flowers or fruit within the decade.
Cornus Capitata Information
Evergreen dogwood trees (Cornus capitata) are hardy down to USDA zone 8. They are native to east and Southeast Asia but can be grown in warm climates all over the world. They can grow as high as 50 feet (15 m.) in height, though they tend to top out between 20 and 40 feet (6-12 m.). In the summer, they produce very fragrant flowers, which are very small and surrounded by 4 to 6 bracts that are often mistaken for petals. The bracts come in shades of white, yellow, and pink. These flowers give way to very distinctive fruits that are actually dozens of tiny fruits fused together. These fruits are pink to red, about an inch in diameter (2.5 cm.) and round but bumpy. They are edible and sweet, but they can cause a litter problem if the tree is planted near a walkway. The leaves are dark and evergreen, though they are sometimes known to turn red to purple and partially drop in autumn.
How to Grow an Evergreen Dogwood Tree
Like many dogwood varieties, evergreen dogwood trees can thrive in both sun and shade. They do best in moist, clay to loam soil. They prefer acidity, but they can tolerate light alkalinity. They need a lot of water.
The trees are monoecious, which means they can self-pollinate. It’s important to bear in mind, however, that they will not flower for 8 to 10 years if they are grown from seed. It’s best to start the trees from cuttings if you want to see flowers or fruit within the decade.
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Dummer. ゛☀
2017年08月30日
Flowering dogwoods (Cornus florida) are deciduous trees native to the eastern half of the United States. These trees can add year-round beauty to the landscape. Let’s look at how to grow dogwood trees. Flowering dogwoods range in color from white to pink or red and generally bloom for about two to four weeks in early spring. They also add summer and fall color, with rich green foliage color in summer and reddish purple leaves during fall. This is oftentimes followed by brilliant red berries in winter. Proper dogwood care will bring these lovely trees to their height of beauty.
How to Grow Dogwood Trees
In their natural habitat, dogwoods are understory trees, which are generally surrounded or protected by other larger trees. Therefore, when caring for dogwood trees, this should be considered carefully before placement in the landscape. Locating these trees on the edge of wooded areas or in groups is oftentimes more suitable to their natural surroundings. They can also be used as a backdrop for azaleas or other spring-flowering shrubs. Flowering dogwoods can be grown in sun or shade; however, trees planted in partial shade generally perform better. Trees planted in full sun can be stressful, making them more susceptible to dogwood borers and heat stress. For care of flowering dogwood trees, dogwoods that are planted in full sun must also rely on frequent watering, especially during hot conditions. While dogwoods will grow in a variety of climates and soil conditions, they typically grow best in, and even prefer, well-drained, humus-rich soil that is slightly acidic.
Planting Dogwood Care
Bare root and burlap dogwood trees should be transplanted in late fall or early spring. Container grown trees can be transplanted anytime of the year, provided they are watered regularly after planting. A dogwood should be planted about two-thirds the depth of its root ball. The soil should be gently mounded around the sides of the root ball. Do not place soil directly over the top of the root ball, as this should be left slightly above ground level. It is acceptable to apply a layer of mulch to help conserve water; however, for good dogwood care, keep this a couple inches away from the trunk. Be sure to water the tree thoroughly after planting and on a regular basis until the tree establishes itself.
Care of Flowering Dogwood
Most dogwoods require supplemental water during summer and fall, especially during hot, dry spells. For care of flowering dogwood trees, regular watering once a week to a depth of 6 inches should suffice. However, adding a generous layer of mulch will help retain moisture, minimizing watering chores. Most established trees do not require fertilizer. However, if you do choose to fertilize young dogwoods, use only a small amount of slow-release fertilizer. Dogwood trees seldom need pruning; however, it may be necessary to remove dead or injured branches, suckers, and diseased or insect-infested parts on occasion. Shaping trees may also help keep them more attractive looking.
Flowering dogwood trees are considered “bleeders,” which means they bleed sap, if pruned during late winter. Summer is an ideal time to take care of any pruning tasks that may be needed since these plants do not bleed sap during this time. Once established in the landscape, caring for dogwood trees is relatively easy. As long as they have been planted in the proper conditions and location, the overall care of flowering dogwoods is minimal.
How to Grow Dogwood Trees
In their natural habitat, dogwoods are understory trees, which are generally surrounded or protected by other larger trees. Therefore, when caring for dogwood trees, this should be considered carefully before placement in the landscape. Locating these trees on the edge of wooded areas or in groups is oftentimes more suitable to their natural surroundings. They can also be used as a backdrop for azaleas or other spring-flowering shrubs. Flowering dogwoods can be grown in sun or shade; however, trees planted in partial shade generally perform better. Trees planted in full sun can be stressful, making them more susceptible to dogwood borers and heat stress. For care of flowering dogwood trees, dogwoods that are planted in full sun must also rely on frequent watering, especially during hot conditions. While dogwoods will grow in a variety of climates and soil conditions, they typically grow best in, and even prefer, well-drained, humus-rich soil that is slightly acidic.
Planting Dogwood Care
Bare root and burlap dogwood trees should be transplanted in late fall or early spring. Container grown trees can be transplanted anytime of the year, provided they are watered regularly after planting. A dogwood should be planted about two-thirds the depth of its root ball. The soil should be gently mounded around the sides of the root ball. Do not place soil directly over the top of the root ball, as this should be left slightly above ground level. It is acceptable to apply a layer of mulch to help conserve water; however, for good dogwood care, keep this a couple inches away from the trunk. Be sure to water the tree thoroughly after planting and on a regular basis until the tree establishes itself.
Care of Flowering Dogwood
Most dogwoods require supplemental water during summer and fall, especially during hot, dry spells. For care of flowering dogwood trees, regular watering once a week to a depth of 6 inches should suffice. However, adding a generous layer of mulch will help retain moisture, minimizing watering chores. Most established trees do not require fertilizer. However, if you do choose to fertilize young dogwoods, use only a small amount of slow-release fertilizer. Dogwood trees seldom need pruning; however, it may be necessary to remove dead or injured branches, suckers, and diseased or insect-infested parts on occasion. Shaping trees may also help keep them more attractive looking.
Flowering dogwood trees are considered “bleeders,” which means they bleed sap, if pruned during late winter. Summer is an ideal time to take care of any pruning tasks that may be needed since these plants do not bleed sap during this time. Once established in the landscape, caring for dogwood trees is relatively easy. As long as they have been planted in the proper conditions and location, the overall care of flowering dogwoods is minimal.
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