动态第900页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2017年08月25日

Lemongrass, as the name suggests, is a grass-like herb whose tender shoots and leaves are used to impart a delicate hint of lemon in many Asian dishes. If you love the subtle citrus flavor of this herb, you may have wondered “can I propagate lemongrass?” In fact, propagating lemongrass by division is a simple process. Read on to find out how to divide lemongrass plants.[图片]How Can I Propagate Lemongrass? Lemongrass (Cymbopogon citratus), sometimes spelled lemon grass, is indeed a member of the grass family that includes corn and wheat. It is winter hardy to only USDA zone 10, but can be container grown and brought indoors to shelter it from winter temperatures. There are only two of the 55 species of Cymbopogon used as lemongrass. They are usually labeled as East or West Indian lemongrass and are used in cooking or to make tea or tisanes. Lemongrass is generally grown from stem cuttings or divisions, with the division of lemongrass being the most commonly used method.[图片]Propagating Lemongrass by Division As mentioned, division of lemongrass is the primary method of propagation. Lemongrass can be obtained from specialty nurseries or can be purchased from an Asian grocery. Sometimes, you may find it in the local supermarket or obtain a cutting from a friend. If you get it from a grocer, try to find a piece with a few roots in evidence. Put the lemongrass in a glass of water and let the roots grow. When the lemongrass has sufficient roots, go ahead and plant it in a container or garden area with well-draining soil that is moist and high in organic content, and in a full sun exposure. If need be, amend the soil with 2-4 inches of rich compost and work it in down to a depth of 4-6 inches. Lemongrass grows quickly and by the successive year will likely need to be divided. Potted plants, especially, will need to be divided each year.[图片]How to Divide Lemongrass Plants When dividing lemongrass plants, be sure they have at least one inch of root attached. Optimally, cut the blades to a height of two inches before dividing lemongrass plants, which will make managing the plant easier. Dig up the lemongrass plant and, with a shovel or sharp knife, divide the plant into at least 6-inch sections. Plant these divisions 3 feet apart to accommodate the vigorous growth; plants can grow 3-6 feet tall and 3 feet across. Lemongrass is native to tropical regions and thrives with ample rainfall and humid conditions, so keep the plants moist. Water by hand or use flood irrigation, not sprinklers. Fertilize the plants every two weeks during the growing season (June through September) with a complete balanced fertilizer. Cease fertilizing during the winter when the plant goes dormant.

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2017年08月25日

Lemongrassis an exotic plant native to Southeast Asia. It has become popular in a host of international cuisines, has a lovely citrusy scent and medicinal applications. Add to that its ability to repel some insect pests and its elegant 6-foot-tall arching stems and this is a plant you will love to grow. Caring for the plant is easy, but one thing it is fussy about is water. Knowing when to water lemongrass and how much the plant requires is helpful.[图片]Watering Lemongrass As a native of Southeastern Asia, lemongrass prefers hot, humid weather. It will thrive in many soil levels but can be killed when temperatures drop below 40 degrees Fahrenheit (4 C.). During the growing season, it is important to keep the plant hydrated regularly. How often should I water lemongrass? The answer is as easy as sticking your finger in the soil. If you have never grown lemongrass before, you may wonder about its care. Lemongrass plant watering is one of the most important aspects to growing healthy plants. These herbaceous grass-like plants can grow fast in hot weather and that rapid growth needs fuel. Lemongrass water requirements will vary dependent upon the type of soil you have. Sandy, loose soils will require more frequent watering, but those that are silty loam can retain moisture better and won’t need to be irrigated as frequently. Additionally, the use of a layer of organic mulch can enhance soil water retention while also adding nutrients slowly to the soil.[图片]When to Water Lemongrass The best time to water any plant is early morning or late afternoon, and watering lemongrass is no different. These plants should never be allowed to dry out completely. Their native soils are rich, moist and fertile, which means you should mimic these conditions in the garden. Lemongrass watering should take into consideration that the plant prefers regular rainfall and humid conditions. In arid regions, water at least every other day and provide mist. In temperate regions where rainfall is plentiful, insert a finger into soil around the plant’s roots up to the first knuckle. If soil is dry, it is time to water. Irrigate deeply to get to the roots when watering lemongrass.[图片]How to Water Lemongrass in Containers Lemongrass water requirements in pots is a bit different. Containers need good potting mix with plenty or organic compost mixed in. They should also have big enough drainage holes to prevent boggy soil. You may need to water daily to keep moisture levels up, as evaporation from the sides of the container will occur. Again, using some mulch over the top of the soil will help conserve moisture. Growing in containers is a great option for gardeners in cold climates since the container can be moved indoors for winter. Both in ground and container plants will stop growing in winter. Plants that aren’t actively growing need about half the water they did in summer. Always provide good circulation if overwintering the plant indoors to deter mildew problems.

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2017年08月25日

Lemongrass can be treated as an annual, but it can also be grown very successfully in pots that are brought indoors for the colder months. The one problem with growing lemongrass in containers, however, is that it spreads quickly and will have to be divided and repotted frequently. Keep reading to learn more about how to repot lemongrass.[图片]Repotting Lemongrass Lemongrass is a great plant to have on hand if you like to cook Asian cuisine. The plant is hardy in USDA zones 10 and 11. In those zones, it can be grown in the garden, but in colder climates it won’t survive the winter and should be grown in a container. Potted lemongrass plants require repotting at some point. The best time to repot a lemongrass plant is in the fall. By this time, the plant will have finished growing for the year, and it will be time to move your pot indoors before the temperatures drop below 40 F. (4 C.). When you move your lemongrass indoors, place it in a sunny window. If you suddenly find yourself with more lemongrass than window space, give it away to friends. They’ll be grateful, and you’ll have plenty more next summer.[图片]Lemongrass grows best in a container that’s about 8 inches across and 8 inches deep. Since it can grow much larger than that, it’s a good idea to divide and repot a lemongrass plant once every year or two. Lemongrass repotting is not at all difficult. Simply tilt the pot on its side and pull the root ball out. If the plant is especially root bound, you may have to really work at it and there’s a chance you’ll have to break the container. Once the plant is out, use a trowel or a serrated knife to divide the root ball into two or three sections. Make sure each section has at least some grass attached to it. Prepare a new 8-inch pot for each new section. Make sure each pot has at least one drainage hole.[图片]Fill the bottom third of the pot with growing medium (regular potting soil is fine) and place one of the lemongrass sections on top of it so the top of the root ball is an inch below the rim of the pot. You may have to adjust the level of the soil to do this. Fill the rest of the pot in with soil and water thoroughly. Repeat these steps for each section and place them in a sunny spot.

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2017年08月25日

If you like using the lemongrass herb (Cymbopogon citratus) in your soups and seafood dishes, you may have found that it’s not always readily available in your local grocery store. You may have wondered how to grow lemongrass on your own. You can grow your own lemongrass plants, and in fact, growing lemongrass and propagating lemongrass is not all the difficult and you don’t have to have a great green thumb. Let’s take a look at how to grow lemongrass.[图片]How Do I Grow Lemongrass? When you go to the grocery store, find the freshest lemongrass plants you can buy. When you get home, trim a couple of inches off the top of the lemongrass plants and peel away anything that looks somewhat dead. Take the stalks and put them into a glass of shallow water and place it near a sunny window. After a few weeks, you should start seeing tiny roots at the bottom of the lemongrass herb stalk. It’s not much different than starting any other plant in a glass of water. Wait for the roots to mature a little more and then you can transfer the lemongrass herb to a pot of soil.[图片]Growing lemongrass is as simple as taking your started plant out of the water and putting the rooted stalks into a pot containing all-purpose soil, with the crown just below the surface. Put this pot of lemongrass plants in a warm, sunny spot on a window ledge or out on your patio. Water it regularly. If you live in a warm climate, you can plant your lemongrass plants out in the backyard in a bog or pond. Of course, growing the plant indoors is nice for having easy access to the fresh plant whenever you need it.[图片]Propagating Lemongrass Propagating lemongrass is just as easy as starting new plants from store-bought lemongrass herb. Again, take a couple of inches off the top of the grown plant and place them in water in a glass on a window sill. Wait a few weeks and you will once again have a lemongrass herb ready for planting.

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2017年08月25日

Lemon balm is easy to grow and provides a pleasant, lemony flavor and aroma for hot dishes, tea or cold drinks. It’s hard to imagine that such a lovely plant could cause so many problems, but this member of the mint family is super-prolific and can wear out its welcome in a hurry.[图片]How to Prevent Lemon Balm Weeds A weed is defined as any plant that grows where you don’t want it, and lemon balm proves the point. This dainty little plant that looks so innocent when you buy it at the garden center can reach a height of 2 feet and a spread of 3 feet by the end of the first growing season. Worse yet, the plant self-seeds itself like a champ and before you know it, you have a garden full of more lemon balm than you ever wanted — or needed. The most effective way to keep lemon balm in bounds is to prevent the plant from going to seed. One way to accomplish this is to shear the plant two or three times every year so it doesn’t bloom. Don’t worry; cutting the plant back won’t hurt it. If the plant blooms, snip off the flowers before they have a chance to go to seed. Even one bloom can contain a tremendous number of seeds.[图片]Getting Rid of Lemon Balm If the plant has already gone to seed and taken over your garden, removing the plant by hand is usually the best recourse. Be sure the ground is slightly damp so you can pull entire plants, along with the roots and runners (stolons). If you leave roots or stolons in the ground, the plants will return with a vengeance. You may want to loosen the soil with a garden fork to make weeding easier if the ground is hard. One weeding may not be enough for complete lemon balm control. Keep an eye on problem areas and pull the small shoots as soon as they appear. Controlling lemon balm plants requires persistence.

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2017年08月25日

Lemon balm (Melissa officinalis) is a rambunctious plant with attractive, heart-shaped leaves and a delicate lemony aroma. A member of the mint family, lemon balm is easy to grow, even for newbie gardeners. If you’re wondering what to plant with lemon balm, read on for a few suggestions to get you started.[图片]Lemon Balm Companion Planting Lemon balm companion planting is a real boon in the garden, as this perennial herb attracts bees and other beneficial pollinators, while the strong, citrusy odor deters several unwelcome pests, including gnats and mosquitoes. Some gardeners even claim that lemon balm helps keep weeds in check. Finding companion plants for lemon balm is easy, because there are really no bad lemon balm companions! However, companions for lemon balm should be plants that thrive in the same growing conditions – rich, moist, well-drained soil and full sun or light shade.[图片]What to Plant with Lemon Balm Most herbs, fruits and vegetables make great lemon balm companions, including the following: Winter and summer squash Melons Tomatoes All members of the cabbage family (kale, broccoli, Brussels sprouts, cauliflower, etc.) Apples Kiwi Onions Fennel Basil Rosemary Sage [图片]Nearly any blooming plant pairs well with lemon balm, but if you’re hoping to attract pollinators, good lemon balm companions include other nectar-rich plants such as: Cosmos Zinnias Lupine Poppies Allium Four o’clock Rudbeckia Echinacea Sweet peas Bee balm Chamomile Hyssop Borage [图片]If your goal is to deter pests, worthy companions for lemon balm are: Marigolds Geraniums Daisies Asters Sunflowers Nasturtiums Petunias Lavender Dill Mint Chives Parsley

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2017年08月25日

Lemon balm plants tend to be pass-along plants that a gardener ends up with from plant swaps or as gifts from other gardeners. This can leave a gardener wondering what to do with lemon balm and what is lemon balm used for exactly. While not as popular as other herbs, lemon balm is nevertheless a wonderful herb to have in your garden. Keep reading to learn more about how to grow lemon balm.[图片]What is Lemon Balm? The lemon balm plant (Melissa officinalis) is actually a member of the mint family and is a perennial herb. It grows as a bushy, leafy herb with a pleasant lemon smell and small white flowers. If not carefully controlled, lemon balm can quickly become invasive in the garden. Often, people mistakenly think that lemon balm is invasive due to its roots, like its cousins peppermint and spearmint, but in fact it is the seeds of the lemon balm plant that cause this herb to suddenly take over a garden. Removing the flowers of the plant as soon as they appear will make your lemon balm far less invasive.[图片]How to Grow Lemon Balm Plants Growing lemon balm is very easy. The plants aren’t picky about where they grow and will grow in almost any soil, but they prefer rich, well drained soil. Lemon balm plants will grow in part shade to full sun, but flourish best in full sun. It isn’t recommended that you fertilize lemon balm, as this can cause the strength of its scent to be reduced. Lemon balm is easily propagated from seeds, cuttings or plant divisions.[图片]What is Lemon Balm Used For? Once established, lemon balm can produce large amounts of its sweet, lemon smelling leaves. These leaves can be used for a variety of things. Most commonly, lemon balm leaves are used in teas and potpourris. You can also use lemon balm in cooking, in making essential oils and as an insect repellent.

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2017年08月25日

Rumored to be what Mary laid upon as she gave birth to Jesus, lady’s bedstraw is also called our lady’s bedstraw. While there is no proof that lady’s bedstraw was in the manger with Mary, Joseph and Jesus that night, it is native to Europe, The Middle East and Asia. Due to its importance as an herb, lady’s bedstraw was brought to North America by early immigrants and has naturalized throughout the United States. In this article, I will cover the herbal uses of lady’s bedstraw, as well as how to grow lady’s bedstraw.[图片]Lady’s Bedstraw Plant Info Lady’s bedstraw plant (Galium verum) is a perennial herb hardy in zones 3-8. Lady’s bedstraw is one of over 400 varieties of Galium. Perhaps the most popular variety is Galium odoratum, commonly known as sweet woodruff, and the most annoying variety goes by goosegrass, sticky willy or cleavers (Galium aparine). Lady’s bedstraw has a creeping habit and whorls of 6-12 hairy, almost needlelike, long leaves. Unlike its cousin sticky willy, these hairy leaves do not catch and stick to you if you walk through them, but like sticky willy, lady’s bedstraw has clusters of small yellow flowers that bloom from June – September. And like sweet woodruff, the flowers of lady’s bedstraw are highly fragrant because they contain a chemical known as coumarin. The scent is described as being a cross between vanilla and freshly cut hay. As dried flowers, the scent of lady’s bedstraw flowers lasts a long time.[图片]Uses of Lady’s Bedstraw Long before man-made fibers, mattresses and pillows were stuffed with organic materials. Lady’s bedstraw was often used as stuffing for beds. Because of its association with the Virgin Mary, it was considered good luck to use lady’s bedstraw in the mattresses of expecting mothers. Lady’s bedstraw herbs were also used as dyes. The yellow flowers were used to make a yellow dye for butter, cheese, hair and textiles; the red roots were also used to make a deep red dye. Lady’s bedstraw is sometimes called cheese rennet because it contains a chemical that curdles milk and was used in cheese making. Besides mattress stuffing, dye and cheese making, lady’s bedstraw plant was used as a traditional herb to treat burns, wounds, rashes and other skin disorders. It was also used to treat epilepsy and the root is reportedly a flea repellent.[图片]How to Grow Lady’s Bedstraw Herbs Lady’s bedstraw herbs will grow in full sun to part shade. They are not picky about soil type and can thrive in loam, sand, clay or chalk. They do prefer soil that is alkaline to neutral, though. Once established, lady’s bedstraw will be drought tolerant. However, the plant can spread like mad and become invasive. To keep it in check, try growing lady’s bedstraw in pots or at least in areas where the will not choke out other plants in the garden.

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2017年08月25日

Getting rid of horsetail weed can be a nightmare once it’s become established in the landscape. So what are horsetail weeds? Keep reading to learn more about how to get rid of horsetail weed in gardens.[图片]What are Horsetail Weeds? The horsetail weed family (Equisetum spp.), closely related to the fern family, contains over 30 ancient species of plants. At one time, horsetail was the dominant plant on the earth and was said to have grown to a very large size. Today, there are two forms of this perennial plant. One is known as “scouring rush,” and has no leaves but instead has hollow and jointed stems. At one point in time, this plant was not considered obnoxious and was actually used extensively. Early settlers used the stems of this horsetail plant to clean pots and pans. English cabinetmakers used the stems to polish wood. The second type of horsetail plant has many slender, green, jointed branches around jointed and hollow stems. Its appearance resembles a horse’s tail and is sometimes called a “mare’s tail.” This horsetail was also used by ancient civilizations to stop bleeding and heal wounds. Horsetail is a perennial, flowerless weed that can be very toxic to animals, especially horses, if eaten in large amounts. Horsetail spreads by spores that are carried by the wind. Horsetail can be found in ditches, around ponds, along roadsides, in fields and even sometimes in the garden.[图片]How to Get Rid of Horsetail Although horsetail is commonly found in ditches, along roads, by ponds or even in fields, it can also find its way to your garden area. Getting rid of horsetail weed in gardens and other areas of the landscape is no easy task. Horsetail weed in gardens can be a major problem because this plant has a tremendous root system with rhizomes. There is no specific horsetail weed killer and many chemical options are just not very effective. In small areas, it may be possible to dig the plant up by the roots. It is imperative that all roots are removed, or the weed will reappear. Another option for control involves smothering the plant with a large sheet of plastic. Leave the plastic on for at least one garden season. The weeds under the plastic should die.[图片]The best method to keep this weed from taking over your garden is to practice prevention. Improve areas in your landscape that don’t drain well and keep tilling around horsetail to a minimal, as this will only spread the spores.

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2017年08月25日

Horsetail (Equisetum arvense) may not be favored by all, but to some this plant is treasured. Horsetail herb uses are plentiful and caring for horsetail plants in the herb garden is easy, provided you keep it from jumping ship and overtaking other areas of the garden. Keep reading to learn how to grow horsetail herbs.[图片]Horsetail Plant Info To some people it is a nuisance; to others it is an interesting and ancient herb that has earned its rightful place in history, the medicine closet and beauty products. Growing where other plants dare not, horsetail plant is a member of the Equisetum family and is closely related to ferns. Like ferns, horsetail plants reproduce via spores and they have a very deep rhizome system that can tunnel up to 3 feet under the soil. Within the Equisetum family, there are two large groups: horsetails and scouring rushes. Horsetails have branches and a bushy appearance and scouring rushes have no branches. Both plants are without true leaves and use chlorophyll in their stems for photosynthesis. Horsetail is also known by a number of other names, including mare’s tail, horse pipes, snake grass and joint grass. Horsetail plant info suggests that it has earned its name for its jointed or segmented appearance and bristle-like texture, which is similar to a horse’s tail.[图片]Horsetail Herb Uses Horsetail is a very valuable herb due to its high content of silicon used in the treatment of osteoporosis. Horsetail has also been used to lower blood pressure, as a diuretic, to strengthen brittle nails, stop bleeding gums, relieve sore throats and as a topical treatment of burns and wounds. As with any herb, it is always best to consult a professional first. It can also be used as a substitute for a scouring pad in the kitchen by bundling several stems together and taking advantage of the tough and rough texture on the stems.[图片]How to Grow Horsetail Horsetail herb growing isn’t difficult if you provide the right conditions. Horsetail is fond of wet or boggy areas and thrives in poor soil, making it a perfect choice for areas in the landscape where other plants fail to thrive. Because it tends to spread rapidly, it’s best to give horsetail plenty of room to spread. The plants can also be kept in bounds by sinking them in bottomless containers. In fact, if you have limited space, you can grow horsetail in a container. Plants prefer a half day of sun and high heat and humidity. If you live in USDA plant hardiness zones 7 – 10, horsetail is easy to grow. It’s best to start plants from seed six weeks before the last frost and transplant outside in early spring. Caring for horsetail is easy once planted. Soil should remain wet at all times. If you are growing in a container, keep an eye on moisture levels and water accordingly. Keep old stems pruned for best performance.[图片]Harvesting Horsetail Herbs Horsetail herb harvesting is done in the summer. Pick stems, discarding any discolored ones, and let them dry in a cool, dark place. Once dry, the stem can be ground into a powder and stored in an airtight container for up to one year, or use for ornamental purposes. Young shoots can also be eaten like asparagus.

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