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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
Also known as curly willow or tortured willow, corkscrew willow (Salix matsudana ‘Tortusa’) is easy to identify by its long, graceful leaves and curly, contorted branches, which become especially noticeable during the winter. Unfortunately, although corkscrew willow is a fast-growing tree, it isn’t long lived and tends to be susceptible to breakage and insect problems. In spite of its downfalls, growing a curly willow tree is a worthy endeavor, and with proper care, you’ll enjoy this fascinating tree for several years. Keep reading and learn more about how to grow corkscrew willow trees.
Curly Willow Growing Conditions Before growing this tree, you should know where to plant curly willow. Corkscrew willow is suitable for growing in USDA plant hardiness zones 4 through 8. The tree develops a short root system that remains near the surface of the soil, so it should be planted a safe distance from buildings, driveways, sidewalks and sewer lines. Plant curly willow anytime during spring or summer. Curly willow isn’t fussy about soil and adapts to clay, loam or sand. Similarly, it tolerates either sun or partial shade. However, ideal conditions for this tree are well-drained, moist soil and full sunlight.
Corkscrew Willow Care For the most part, corkscrew willow care is minimal, but the tree likes moisture. Water regularly during the first year, then water generously during periods of hot, dry weather. A 2- to 3-inch layer of mulch will help keep the soil moist, helps keep weeds in check, and protect the trunk from damage by weed trimmers and lawnmowers. However, leave a few inches of bare ground around the base of the tree, as mulch that piles up against the trunk can attract a variety of pests. Corkscrew willow generally requires no fertilizer, but if growth appears weak, you can apply a cup of balanced dry fertilizer around the tree every spring, then water deeply. If your tree is near a fertilized lawn, it probably already receives adequate nutrients.
Prune corkscrew willow regularly to allow air and sunlight to enter the center of the tree, as a healthier tree free of damaged or dead branches is less prone to insect damage. However, problems to watch for include pests such as aphids, borers, gypsy moths and willow beetles. The tree is relatively disease-resistant, although it is susceptible to powdery mildew and leaf spot. The diseases tend to be relatively mild and usually don’t require treatment.
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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
Willow trees (Salix spp.) are fast-growing beauties that make attractive, graceful ornamentals in a big backyard. In the wild, willows often grow by lakes, rivers or other bodies of water. Although willows are not sickly trees, a few diseases and pest infestations do attack and cause willow tree problems. If willow tree bark is falling off, you may need to take action.
Common Willow Tree Problems Willows are not picky trees and most thrive in almost any kind of soil as long as there is adequate sunlight. They grow best in sites with full sun. However, the tree is vulnerable to several diseases and pests, including a few that cause willow tree bark peeling. A few of the most serious willow tree problems do not cause peeling willow bark. These include infestation by gypsy moth caterpillars, willow leaf beetles and bagworms that will defoliate the tree.
The worst willow diseases include: Crown gall, which causes stunting and dieback Willow scab, which causes olive green spore masses along the underside of leaves Blank canker, causing dark brown spots on the tree’s leaves. These are not your tree’s problem if your willow tree bark is falling off.
Reasons for Peeling Bark on Willows Peeling willow bark can be caused by insects. If your willow tree bark is falling off, it could be a sign of borer insects. Both poplar and willow borers can tunnel through the inner layer of the willow bark. This causes peeling bark on willows. Your best bet if your willow tree has borers is to clip out all diseased branches. Then you can spray the willow tree with permethrin to kill borers. Another possible reason for willow tree bark peeling is too much sun. Willows most often get sunscald in winter when sun reflects off bright snow. The sunlight heats the tree bark, causing the tree cells to become active. But as soon as the temperatures plunge, the cells freeze and rupture.
If your willows have yellow or red patches on the tree trunk, this may be the result of sunscald. Those spots can also crack and peel as time passes. The tree will heal from sunscald, but you can protect your wills by acting before winter. Paint the trunks with diluted, white paint in early winter to prevent sunscald.
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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
Willow trees are big, graceful trees that are relatively low-maintenance and hardy enough to grow in a variety of conditions. While the long, slender branches of most willow tree species lend themselves to creation of beautiful woven baskets, certain larger willow species are preferred by weavers around the world. Read on to learn more about growing willow plants for baskets.
Basket Willow Trees There are three willow tree species commonly grown as basket willow trees: Salix triandra, also known as almond willow or almond-leaved willow Salix viminalis, often known as common willow. Salix purpurea, a popular willow known by a number of alternate names, including purple osier willow and blue arctic willow Some weavers prefer to plant all three basket willow trees. The trees are perfect for baskets, but basket willow uses are also ornamental, as the trees create a variety of bright colors in the landscape.
How to Grow Basket Willows Basket willow trees are easy to grow in a variety of soil types. Although they adapt to dry soil, they prefer moist or wet soil. Similarly, the trees thrive in full sun but will tolerate partial shade. Willows are easily propagated by cuttings, which are simply pushed a few inches into the soil in late winter to early spring. Water well and apply 2 or 3 inches of mulch. Note: Some willow species can be invasive. If in doubt, check with your local cooperative extension before planting.
Basket Willow Tree Care Basket willow trees grown for baskets are often coppiced, which involves cutting top growth down to the ground in late winter. However, some growers prefer to let the trees grow to their natural shape and form, removing only dead or damaged growth. Otherwise, basket willow tree care is minimal. Provide plenty of water for these moisture-loving trees. Fertilizer isn’t generally needed, but basket willow trees in poor soil benefit from a light feeding of a balanced fertilizer in spring.
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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
Willow scab disease attacks different types of willow species in Europe and the United States. It can attack weeping willows but is not one of the more common weeping willow diseases. Willow scab is caused by the fungus Venturia salciperda. Scab on willow trees usually doesn’t cause serious harm unless the black canker fungus (Glomerella miyabeanais) is also present. Read on to learn about how to recognize and how to treat willow scab.
Scab on Willow Trees Willow scab is a fungal disease that causes leaf symptoms, followed by brown spore masses at the base of leaves. The symptoms of scab on willow start with dark spots on the leaves. These can be brown or black, and cause the leaves to wilt, shrivel up and die. In time, as the willow scab disease progresses, the fungus spreads to the stem tissue at the bases of leave petioles. There, it forms olive-brown velvety spore masses. This happens most often in wet spring weather. Look on the underside of the leaves and along the rib and veins for these fruiting bodies. Although scab on willow trees can attack any almost any Salix tree, it is not considered one of the common weeping willow diseases. In fact, weeping willows (Salix babylonica) are the most resistant willow species to this disease.
How to Treat Willow Scab Willow scab disease causes only minor damage to your trees if they are healthy. However, repeated infections may slow a willow’s growth and reduce its vigor. If you are wondering about whether effective willow scab treatment exists, you’ll be happy to hear that it does. You can control willow scab on your backyard willows with a combination of good cultural practices and chemical applications. How to treat willow scab with cultural practices? First, you’ll need to trim out all of the infected parts of the willow tree, including stems and twigs. Don’t forget to sterilize your pruners with a bleach and water mixture to avoid spreading the fungus.
In addition, keep your trees vigorous with sufficient irrigation and regular fertilizer. The disease does much less damage to healthy trees than vulnerable ones. Finally, properly timed fungicide applications can be part of your willow scab treatment. This is especially important if your tree is also infected by the black canker fungus.
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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
The white willow (Salix alba) is a majestic tree with leaves that have a magic of their own. Tall and graceful, the undersides of its leaves are silvery white, giving the tree its common name. Read on for more white willow information, including tips on how to grow a white willow and white willow care.
What is a White Willow Tree? White willows are lovely, fast-growing trees that can shoot up to 70 feet in your garden. White willows are not native to this country. Rather, they grow wild in Europe, central Asia and northern Africa. White willow cultivation began in the United States in the 1700s. Over the years, the tree has naturalized in many parts of the country. Once you read up on white willow information, you’ll know why the tree has many fans. It not only leafs early, but it holds onto its leaves late into autumn. This tree is one of the first to leaf in the spring, and one of the last to drop its leaves in the fall. The bark is furrowed, and the branches droop gracefully, though not as much as a weeping willow. In spring, attractive catkins appear on the trees. The seeds ripen in June.
White Willow Cultivation These trees thrive in U.S. Department of Agriculture plant hardiness zones 3 through 8, and generally do not require much white willow care. If you want to grow a white willow, plant it in moist loam. The ideal pH range for white willow cultivation is between 5.5 and 8.0. Choose a sunny spot or at least one with partial sun, since white willows don’t do well in deep shade. These willows attract wildlife. Many different animals use the spreading branches for cover. They also provide food for the caterpillars of different moth species including the puss moth, willow ermine and red underwing. The catkins provide bees and other insects early spring nectar and pollen. On the other hand, before you jump into white willow cultivation, you’ll want to note the downsides. These include weak wood; a marked susceptibility to pests and disease; and shallow, moisture-seeking roots.
White Willow Care For white willow care, irrigation is important – more rather than less. White willows can survive severe flooding but don’t do well with drought. On the other hand, they tolerate sea spray and urban pollution. Like many willow species, white willows love wetlands. For ideal white willow cultivation, plant your trees around ponds or rivers. That reduces white willow care, since the tree roots have a source of water.
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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
Weeping willow is a lovely, graceful tree for a large scale garden. Many consider weeping trees romantic additions to their garden. Featuring silvery green foliage in summer and turning yellow in the fall, these are fast growing, large trees useful for screening or as a focal point in the garden.
Weeping Willow Information The weeping willow (Salix babylonica) is native to China. These trees are popular worldwide for their unusual weeping branches. Utilized and admired in gardens and the subject of legends from ancient times, these trees grow throughout the Eastern United States, thriving from Michigan to Central Florida and west to Missouri. Some believe the ‘weeping’ refers to the way raindrops stream down the branches, dripping ‘tears’ from the tips. Therefore, this willow is a beloved tree in cemeteries and memorial gardens.
Planting Weeping Willow Trees When planting weeping willow trees, consider where to place them. They are happiest while basking in full sun with their feet slightly wet. Thus, a lakeside location is recommended. Be aware of their eventual size (60 x 60 feet height and spread potential, or 18 m.) while noting locations of underground pipes. Willow roots tend to seek out and clog pipes. These trees are easy to establish and tolerate soils from acidic to alkaline. Consequently, when planting weeping willow trees, they need only a bit of compost (in poor soil) and a sprinkling of all-purpose fertilizer. Consistent watering helps.
Weeping Willow Care Weeping willow care may increase as they grow, since they host many insects. Caterpillars and borers feast on the leaves and bark. Caring for a weeping willow includes monitoring the branches too. Keeping an eye on the tree is necessary because branches tend to crack and fail due to age, especially during ice and snow events. The foliage is prone to fungal diseases, and as a result, becomes spotted and unattractive. Insect and disease problems may require treatment to keep the tree looking its best.
Weeping Willow Tree Varieties Salix babylonica is the variety of weeping willow most commonly planted. Alternatives to the weeping willow include the Niobe Golden willow (Salix alba tristis) and the Dwarf weeping willow (Salix caprea ‘Kilarnock’).
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Dummer. ゛☀
2017年09月03日
Dummer. ゛☀
Willow trees are suitable for moist sites in full sun. They perform well in almost any climate, but the limbs and stems are not strong and may bend and break in storms. There are many types of willow trees for the home landscape. Learn how to grow a willow tree for a fast growing, easy-to-care for screen or specimen tree.
Types of Willow Trees There are tree and shrub willows, all of which are characterized by their love for moist soil and rangy, sometimes invasive root systems. You may even find a willow tree growing at the edge of a stream or river. Weeping and pussy willows are probably two of the better-known types of willow trees, but there are many others. Weeping willows – Weeping willows have graceful arching stems that dangle delicately and shiver in the breeze. Pussy willows – Pussy willows put on a spring display of fuzzy buds that are charming and reminiscent of childhood.
Gold or White willows – Golden and white willows are introduced species from Europe and often used as screens and part of shelterbelts. Black willows – Black willows are native to parts of North America and common along waterways. Corkscrew willows – Corkscrew willows have attractive decorative stems, which spiral appealingly and provide interest in winter.
How to Grow a Willow Tree You can grow a willow tree from cuttings. Take a cutting from a live terminal branch that is 18 inches long. Insert the cut end into moist soil in a pot with good drainage or straight into garden soil. Keep it moderately moist until the cutting roots. A more common method of willow tree growing is from bare root trees that are at least 1 year old. These need to have the roots soaked in a bucket before planting and soil worked to twice the depth and diameter of the root spread. Push soil in and around the roots when planting willow trees, and water the soil in well. Thereafter, follow good willow tree care for a fast growing tree or shrub.
Planting Willow Trees Consider carefully where you plant your tree or shrub. Not all types of willow tree are invasive, but many are and you do not want their root system all over your planting bed. Provide a collar around young trees to protect them from wildlife. Young trees are especially susceptible to the nibbling of deer, elk and even rabbits. They need to be kept quite moist but not soggy as the roots establish.
Willow Tree Care Willow trees are easy to grow and require moderate care. Prune young trees to keep lower limbs up for easier maintenance. Otherwise, willows do not need trimming and only removal of old and dead wood is required, though many people prefer to keep pussy willows trimmed. Willows flourish in moist organic-rich soils. If your soil is poor and has limited nutrients, work in compost at the time of planting and fertilize with an all-purpose plant food in early spring.
Water willows in periods of drought and watch for pests and disease. Willows are not bothered by many problems but it is easier to nip them in the bud at the first sign rather than wait until the plant’s health is compromised.
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Dummer. ゛☀
2017年09月02日
Dummer. ゛☀
Yellow oleander trees (Thevetia peruviana) sound as if they should be closely related to oleander, (genus Nerium) but they aren’t. Both are members of the Dogbane family, but they reside in different genera and are very different plants. Read on for yellow oleander information and tips on yellow oleander care.
Yellow Oleander Information Yellow oleander trees are so small that many consider them large bushes. Yellow oleander information suggests that these evergreen plants rarely get over 10 feet when cultivated, although they can get to 20 feet in the wild. The flower of yellow oleander looks like a narrow tube that flares out at the tip into five petals, twisted into a spiral shape. They are fragrant, about 2 inches long and grow in clusters. A mechanism inside the throat of the flowers helps with pollination. It coats insects coming for the sweet nectar with pollen, making sure that they will transfer pollen to the next flower. Yellow oleander trees’ thick fruit has four sides and changes colors as it matures. The fruit starts out green, then turns a lipstick red, but finally matures into a dull black. The stone inside is brown and smooth and makes nice necklaces.
Uses for Yellow Oleander Yellow oleander trees grow in savannahs and riparian areas in their native range in Africa. They can become invasive if grown in open regions, and the trees have been listed as noxious weeds in South Africa. In other countries, the uses for yellow oleander are largely ornamental. In the United States, the tree is cultivated as a garden plant, despite its toxicity. Is yellow oleander poisonous? Yes, it is. Every part of the plant is poisonous.
Yellow Oleander Care Many gardeners choose to grow yellow oleander in spite of its toxicity, seduced by the plant’s luxurious, tropical look and long-lasting blossoms. If you want to grow this plant, it’s nice to know that yellow oleander care is not difficult nor time consuming. Just be cautious about growing it around small children and pets. Plant yellow oleander trees in part or full sun, since they like heat. The trees do best in well-draining soil with lots of organic content, so work in compost before you plant.
You’ll need to water these plants regularly. Pruning and litter cleanup (wear gloves) will take a little of your time as well. Generally, however, these are low-maintenance plants.
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Dummer. ゛☀
2017年09月02日
Dummer. ゛☀
Dwarf myrtle trees are small evergreen shrubs native to moist or dry sandy areas of pine-hardwoods in East Texas, east to Louisiana, Florida, North Carolina and north to Arkansas and Delaware. They are also referred to as dwarf wax myrtle, dwarf candleberry, bayberry, waxberry, wax myrtle, and dwarf southern wax myrtle and are a member of the family Myricaceae. The plant’s hardiness zone is USDA 7.
Difference Between Wax Myrtle and Dwarf Myrtle Depending on who you talk to, dwarf myrtle is thought to be simply a smaller variety of its common sister species, Morella cerifera, or the common wax myrtle. Apparently, the genus Myrica was split into Morella and Myrica, so wax myrtle is sometimes called Morella cerifera and sometimes called Myrica cerifera. Wax myrtle will generally have larger leaves than the dwarf variety and will attain a height a couple of feet taller (5 to 6) than the dwarf.
Growing Dwarf Wax Myrtle Valued for its aromatic, evergreen foliage and its 3 to 4 foot manageable height, growing dwarf myrtle is also adaptable to full sun or partial shade in a wide range of soils from boggy to arid. The fine wispy foliage of dwarf wax myrtle looks lovely as a pruned hedge or it may be limbed up to form an attractive specimen plant. Dwarf wax myrtle has a stoloniferous root system or spreading habitat (through underground runners) that tends to produce a thicket or dense colony of plants that are useful for erosion management. This thicket-like growth can be curtailed through pruning the plant to contain its spread as part of the care of dwarf myrtle.
The leaves of the dwarf wax myrtle are heavily dotted with resin on both the dark green top and the brownish olive undersides, giving it a two-toned appearance. Dwarf wax myrtle is a dioecious plant, which bears silvery blue-grey berries on female plants following the yellow spring/winter blossoms. The new spring growth has a scent akin to bayberry when the foliage is bruised.
Dwarf Myrtle Plant Care Dwarf myrtle plant care is fairly straightforward when grown in the correct USDA zone, as the plant is highly adaptable to a variety of conditions. Dwarf wax myrtle is susceptible to the cold, especially freezing winds, which will cause leaf drop or severely browned leaves. Branches also become brittle and may split or break under the weight of ice or snow. However, dwarf myrtle plant care and growth is possible in areas of salt spray, which the plant is very tolerant of. Dwarf myrtle plants can be propagated through cuttings.
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Dummer. ゛☀
2017年09月02日
Dummer. ゛☀
Growing wax myrtle (Myrica cerifera) as an evergreen shrub or small tree is an excellent addition to the landscape. Learning how to plant wax myrtle is relatively simple. The wax myrtle tree or shrub is often used for a fast growing hedge or privacy screen and may be used singly as an attractive specimen plant in the yard.
Wax Myrtle Care Tips Wax myrtle care involves fertilization and pruning for shape or pruning when limbs are damaged or split off by heavy ice and snow. Historically, leaves of the wax myrtle tree were used for fragrance and flammability when making candles. This fragrance, still used today, has earned the shrub a common name of southern bayberry. Wax myrtle often exhibits growth of 3 to 5 feet a year. As a shrub it has a rounded, narrow form and is attractive when limbed up for use as a small tree. Use the wax myrtle tree in mixed shrub borders and as shade for the deck or patio. When growing wax myrtle, avoid planting annuals and perennials around the roots of this plant. Root disturbance or injury results in numerous suckers that must be pruned to keep the plant healthy and for proper wax myrtle care.
Fruit of the wax myrtle tree is an important source of food for birds in the winter. Grayish-white clusters of fruit with a bluish, waxy coating remain on the plant throughout the winter in USDA Zones 7 -9, where the growing wax myrtle is hardy. Include the wax myrtle tree in your natural or wildlife friendly area. Flowers appear in spring; small with a greenish tint.
How to Plant Wax Myrtle Plant wax myrtle in a full sun to part sun area where roots will not be disturbed. This plant is salt tolerant and takes sea spray well, making it an exceptional beach front planting. The wax myrtle is adaptable to a range of soils, but prefers the soil to be moist. When growing wax myrtle, plant it where you can enjoy the bayberry fragrance emitting from the glossy leaves and berries.
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