动态第906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

You’ve probably heard all the buzz about Bacopa and its restorative properties on TV shows like Dr. Oz. Calming nerves and assisting in a peaceful sleep, we might all benefit from learning how to grow a Bacopa plant (Sutera cordata). In addition to the calming effects, growing Bacopa plants adds perky color and finely textured foliage to the garden bed or nearby hanging basket. Let’s find out how to grow a Bacopa plant.[图片]Bacopa Plant Info Growing Bacopa trailing annual is simple, with many uses in the sunny to part shade garden. Bacopa plant info indicates that the small plant reaches no more than 6-12 inches in maturity. The low-growing specimen spreads vigorously to cascade over a wall or quickly cover bare spots under taller plants. The happy Bacopa trailing annual is often covered with tiny flowers from June through October. Flowers are in shades of white, pink, lavender, blue and even coral red. The cultivar ‘Giant Snowflake’ has larger, white flowers and reaches just 3 to 6 inches in height and is one of the original varieties of Bacopa trailing annual. When growing Bacopa plants, experiment with different varieties of the hybrids. ‘Cabana’ is a newer white-flowering form of the plant that is more compact. ‘Olympic Gold’ also has white flowers with variegated leaves of gold and green that requires a more shaded spot. Bacopa plant info says white flowering varieties offer the most long-lasting bloom. Also, when shopping for Bacopa plants, look for the name Sutera on plant labels.[图片]How Do You Care for Bacopa? Growing Bacopa plants is most easily done in containers. This allows for the consistent moisture necessary to avoid the interruption of flowering. Use Bacopa trailing annual as a filler plant in mixed containers and hanging baskets. Grow Bacopa trailing annual in a full sun to part shade location. Bacopa plant info on how to grow a Bacopa plant advises growing the plant where afternoon shade is available in the hottest areas.[图片]The tender annual is sometimes bothered by aphids, which can be dispersed with a strong blast of water from the sprayer. If aphids persist on new growth, treat them with a soapy spray or insecticidal soap. Neem oil is also beneficial. Now that you’ve learned the basics of how do you care for Bacopa and the many uses for the diminutive, spreading plant, add some to your garden this year.

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2017年08月25日

Brahmi is a plant that goes by many names. Its scientific name is Bacopa monnieri, and while it’s native to India, it has since spread to tropical regions all over the world. It is an edible plant that is frequently used for medicinal purposes. Keep reading to learn more about brahmi plant care and how to grow brahmi herbs.[图片]Brahmi Plant Information What is brahmi? It’s a low growing, creeping herb that reaches a maximum of about 6 inches in height and grows outward in a sprawling pattern. If left to its own devices, it can spread rapidly. Brahmi plant care is pretty easy and forgiving. It prefers part to full sun and will grow in a wide range of soils. As long as it gets sufficient water, it can thrive in rock, sand and mud. It will even grow directly in water features, forming its foliage as floating mats. Feed the plants moderately with slow release fertilizer. They’re not heavy feeders, but they do appreciate the nutrients. If you’re growing brahmi in water, however, don’t use any fertilizer, as this will just encourage algae growth.[图片]What are the Benefits of Brahmi? Brahmi has soft, hairy stems and bright green, oval, succulent leaves. Its flowers are small and white with yellow centers. It is completely edible and is very popular as a medicine when it is steeped into a tea, mixed with oil or worked into a paste. So what are the benefits of brahmi? There is a huge list of ailments brahmi can be used to treat, from respiratory and stomach problems to memory loss to leprosy. It’s especially common in traditional Indian medicine. It’s also good for promoting general good health. Disclaimer: The contents of this article is for educational and gardening purposes only. Before using ANY herb or plant for medicinal purposes, please consult a physician or a medical herbalist for advice.[图片]

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2017年08月25日

Stinky herb or beneficial medicinal? Asafetida has historic uses botanically as a digestive, vegetable and flavor enhancer. It has a rich history in Ayurvedic medicine and Indian cuisine. Many people find the odor offensive, even stomach turning, but knowing how to use this interesting plant can add authenticity to your Indian menus while keeping your tummy in line. Some tips on how to grow Asafetida follow.[图片]What is Asafetida? Asafetida (Ferula foetida) has been cultivated and harvested for centuries. What is Asafetida? This same plant is referred to both as “Food of the Gods” and “Devil’s Dung,” making it confusing to the layperson. Should you eat it? Should you pull it up and discard it? That all depends upon how you wish to use the plant and what traditions your culinary palate can handle. Either way, the perennial herb bears attractive curly, lacy foliage and interesting flowering umbels that can enhance the garden in USDA zones 3 to 8. Asafetida is native in Afghanistan and into eastern Persia, now Iran. Among the many Asafetida uses are culinary and medicinal – as a brain stimulant, laxative and effective respiratory medicine. The plant itself occurs in sandy, well-drained soils and was initially spotted growing by Western botanists in the Aral Desert, although Asafetida plant cultivation was known to take place as far back as the 12th century. In appearance, Asafetida is an herbaceous plant that can grow 6 to 10 feet in height. It has numerous sheathed petioles and parsley-like foliage. The flower is also similar to those in the parsley family. Large umbels of tiny pale green yellow blooms become flat oval fruits. The plant takes years to flower but is monocarpic, meaning it dies after flowering.[图片]Asafetida Plant Information The wide range of Asafetida uses indicates that the often pungent and unpleasant odor has not historically been an issue. Leaves and young shoots are cooked like a vegetable and considered a delicacy. The starchy root is also used to make a porridge. Apparently, boiling the plant helps remove the stench and makes the herb more palatable. Gum resin obtained from the plant is sold as a garlic substitute, although the flavor and odor may be more pungent than some users might like. Along with medicinal properties, one of the most intriguing pieces of Asafetida plant information is its use as a secret ingredient in Worcester sauce – aka Worcestershire sauce. It is still a common flavoring and digestive aid in Afghani and Indian cookery.[图片]How to Grow Asafetida If you wish to undertake your own Asafetida plant cultivation, you first need to obtain some viable seed. The plant is tolerant of a wide range of soil consistencies as well as pH, but well-draining medium is a must. Asafetida requires full sun. Sow seeds in fall or early spring directly into prepared beds. Germination is improved by exposure to cold, moist conditions. Sow seeds on the surface of the soil with a lightly tamped layer of sand over them. Space seeds 2 feet apart and keep moderately moist until germination. Thereafter, water when soil is dry to the touch several inches down. Plants are generally self-sufficient after they grow several feet high but some may require staking. In some regions, they can be self-sowing, so removing the flower heads before they go to seed may be necessary unless you want a field of this herb. Harvest as a vegetable when shoots and leaves are young and tender.

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2017年08月25日

One of the strongest flavors available in nature is anise. Anise plant (Pimpinella anisum) is a Southern European and Mediterranean herb with a flavor reminiscent of licorice. The plant is attractive with lacy leaves and a profusion of white flowers and grows as a bushy ornamental herb. Growing anise in the herb garden provides a ready source of the seed for curries, baking and flavoring liqueurs.[图片]What is Anise Plant? Anise flowers are born in umbels like Queen Anne’s Lace. The seeds are the useful part of the plant and resemble caraway or carrot seeds. It’s easy to grow anise and the feathery leaves are borne on slightly purple stems. The plant, which grows just under 2 feet tall, requires a warm growing season of at least 120 days. Anise is widely cultivated in many European and Asian countries but has not been an important crop in the United States. Due to its delightful appearance and fragrance, there are now many gardeners who grow anise.[图片]Growing Anise Anise requires a fairly alkaline soil pH of 6.3 to 7.0. Anise plants need full sun and well-drained soil. Directly sow the seed into a prepared seed bed that is free of weeds, roots and other debris. Growing anise needs regular water until the plants are established and then can tolerate periods of drought. Anise plant may be harvested in August to September when the flowers go to seed. Save the seed heads in a paper bag until they dry enough for the seed to fall out of the old flowers. Keep the seeds in a cool dark location until spring sowing.[图片]How to Plant Anise Growing anise is an easy gardening project and can provide seed for a multitude of uses. Anise seeds are small and are easier to sow with a seed syringe for indoor planting or mixed in sand for outside planting. Temperature of the soil is an important consideration for how to plant anise. Soil should be workable and 60 F./15 C. for best germination. Space the seeds in rows 2 to 3 feet apart at a rate of 12 seeds per foot. Plant the seed ½ inch deep in well cultivated soils. Water the plants after emergence twice a week until they are 6 to 8 inches high and then gradually reduce irrigation. Apply a nitrogen fertilizer prior to flowering in June to July.[图片]Anise Uses Anise is an herb with culinary and medicinal properties. It is a digestive aid and to help respiratory illness. Its numerous uses in food and beverage span a wide range of international cuisines. The eastern European communities have used it widely in liqueurs such as Anisette. The seeds, once crushed, yield an aromatic oil that is used in soaps, perfume and potpourris. Dry the seeds for future use in cooking and store them in a glass container with a tightly sealed lid. The many uses of the herb provide an excellent incentive to grow anise plant.

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2017年08月25日

The name “Allspice” is indicative of the combination of cinnamon, nutmeg, juniper and clove essence of the berries. With this all encompassing nomenclature, what is allspice pimenta?[图片]What is Allspice Pimenta? Allspice comes from the dried, green berries of Pimenta dioica. This member of the myrtle family (Myrtaceae) is found in the Central American countries of Guatemala, Mexico, and Honduras and was presumably brought there by migratory birds. It is indigenous to the Caribbean, specifically Jamaica, and was first identified around 1509 with its name being a derivative of the Spanish word “pimiento,” meaning pepper or peppercorn. Historically, allspice was used to preserve meats, generally wild pig called “boucan” during the 17th century peak of pirating along the Spanish Main, leading to them to being labeled as “boucaneers,” today known as “buccaneers.” Allspice pimenta is also known as “pimento” although it is not related to the red pimientos seen stuffed into green olives and swirling around in your martini. Nor is allspice a blend of spices as its name suggests, but rather a flavor of its own derived from the dried berries of the this medium sized myrtle.[图片]Allspice for Cooking Allspice is used for flavoring everything from liquor, baked goods, meat marinades, chewing gum, candies, and mincemeat to the intrinsic flavoring of a holiday favorite – eggnog. Allspice oleoresin is a natural mixture of the oils of this myrtle berry and resin often utilized in sausage making. Pickling spice is actually a combination of ground allspice pimenta and a dozen other spices. Allspice for cooking, however, may occur with either the powdered or whole berry form. Allspice for cooking is procured from the drying of the tiny green berries of the female plant of allspice pimenta harvested along the “pimento walks,” then often dried and crushed until powdered and of a rich port wine hue. Whole dried berries of allspice pimenta may also be purchased and then ground just prior to use for maximum flavor. The ripe berries of this aromatic fruit are too gelatinous to use, so berries are picked prior to ripening and may then also be crushed to extract their potent oils.[图片]Can You Grow Allspice? With such an extensive repertoire of uses, growing allspice herbs sounds like a tempting prospect for the home gardener. The question then is, “Can you grow allspice herbs in one’s garden?” As previously mentioned, this shiny leaved evergreen tree is found growing in the temperate climates of the West Indies, Caribbean and Central America, so obviously a climate that most closely mimics those is most optimal for growing allspice herbs. When removed and cultivated in areas with climates dissimilar to those above, the plant does not usually bear fruit, so can you grow allspice? Yes, but in most areas of North America, or Europe for that matter, allspice herbs will grow but fruiting will not occur. In areas of Hawaii where the weather is favorable, allspice has been naturalized after seeds were deposited from birds and can grow to heights of 10-60 feet tall. If growing allspice pimenta in a climate that is not tropical to subtropical, allspice will do well in greenhouses or even as a houseplant, as it adapts well to container gardening. Keep in mind that allspice pimenta is dioecious, meaning it requires both a male and female plant to fruit.

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2017年08月25日

Yarrow, a perennial plant with feathery leaves that may be both a blessing and a curse in the home landscape, is often called yarrow weed. Ornamental or common yarrow is not native, but Western yarrow is indigenous to North America. Both have a spreading habit and extremely tolerant, hardy natures. It’s the spreading habit that is of most concern to homeowners. Once the plant is in your yard, it’s there to stay and it can be very difficult to remove yarrow.[图片]What is Yarrow? Yarrow is a low-growing plant that produces flower stalks four times its foliage height. The plant is recognized by the feathery almost fern-like green foliage. Each leaf is between 1 and 6 inches long. Each plant can produce several flower stalks covered by fine hairs. Flower heads are borne in corymbs or umbrella shaped clusters. Each flower has five colored flowers surrounding 10 to 20 pale yellow florets. The flowers are commonly white or soft pink but now come in yellows, coral and red.[图片]Is Yarrow an Invasive Weed? The answer to that question is complex but really boils down to opinion. Many people appreciate the easy care nature of yarrow and there are several new cultivars that are introducing new colors and sizes to the home landscape. Yarrow produces season-long umbrella shaped flower clusters that enliven the garden. There are also those who find the plant colonizing entire beds and even the grass. That would classify it as an invasive weed. In these gardener’s minds, yarrow control is paramount. Yarrow is an extremely adaptable plant. It can grow on any soil and in many conditions. It spreads from its rhizomes. When the plant is disturbed and small piece of rhizome can become a whole new plant. The clustered flowers on their 3-foot tall stocks produce thousands of seeds. The tiny seeds spread by wind and can remain viable in soil for up to nine years. The longevity of the seeds makes complete yarrow control impossible.[图片]How to Remove Yarrow Killing Yarrow without Chemicals It’s much nicer to use the term yarrow control but the goal is the same — to eliminate yarrow plants. Digging and hoeing areas where yarrow has spread can remove some of the rhizomes but mechanical control is only effective if it goes down 12 inches and removes every speck of yarrow weed. Providing superior care to the lawn will make it thick and prevent some of the spread of the pest. Chemical Yarrow Control There are several chemicals available for killing yarrow. They must be used during the period of growth from spring to autumn. Dicamba, chlorsulfuron, clopyralid, MCPA, triclopyr and 2,4D are all listed as useful for yarrow control by the University of Illinois. Yarrow will require several treatments over the growing season, so it’s best to define the problem early and apply controls as soon as possible. Remember to follow all precautions listed by the chemical manufacturer.

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2017年08月25日

Composting is a great way to do away with garden waste and get free nutrients in return. It’s mostly common knowledge that effective compost needs a good mix of “brown” and “green” material, but if you want to go above and beyond, you can add more specialty ingredients. Yarrow, in particular, is thought to be an excellent addition because of its high concentration of certain nutrients and its ability to speed up the decomposition process. Keep reading to learn more about composting with yarrow.[图片]Yarrow as Compost Accelerant Is yarrow good for composting? A lot of gardeners say yes. Yarrow plants have a high concentration of sulfur, potassium, copper, phosphates, nitrates, copper, and potash. No matter what, these are beneficial nutrients to have in your compost. In fact, many gardeners use yarrow to make a useful, nutrient rich tea that can be used in a similar fashion to compost tea.[图片]How Does Yarrow Speed Up Decomposition? Still, there’s more to yarrow than that. It’s also thought by some sources that these high concentrations of nutrients work to speed up the decomposition process of the composting materials around them. This is good – faster decomposition means less time to finished compost and, ultimately, more compost. How does composting with yarrow work? Most sources recommend chopping up a single small yarrow leaf and adding it to your compost heap. Using yarrow in compost even in such small amounts is, presumably, enough to have a noticeable effect. So what’s the bottom line?[图片]Composting with yarrow is certainly worth a try, but the amount needed is so miniscule that it’s not necessarily worth it to plant an entire crop just for the sake of adding it to the compost pile. If you already have it growing in your garden, however, give it a shot! At the very least you’ll be adding plenty of good nutrients to your eventual compost.

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2017年08月25日

While often sold as a flowering perennial, yarrow plant (Achillea millefolium) is actually an herb. Whether you decide to grow yarrow in your flower beds or in your herb garden, it’s still a lovely addition to your yard. Yarrow care is so easy that the plant is virtually care-free. Let’s take a look at how to plant yarrow and also tips for how to grow yarrow.[图片]How to Plant Yarrow Yarrow is most often propagated by division, so chances are you’ll buy your yarrow as a plant. Space your plants 12 to 24 inches apart if you’re planting more than one yarrow plant. You can also start your yarrow herb from seed. Start seeds indoors about six to eight weeks before your last frost date. Sow the seeds in moist, normal potting soil. The seeds should just barely be covered by the potting soil. Place the pot with the yarrow seeds in a sunny and warm location. The seeds should germinate in 14 to 21 days, depending on the conditions. You can speed up the germination by covering the top of the pot with plastic wrap to keep in moisture and heat. Remove the plastic wrap once the seeds have sprouted. Regardless of whether your yarrow plants are grown from seed or bought as full plants, you will want to plant them in full sun. They thrive in a wide variety of soils but do best in well drained soil. Yarrow plant will even grow in very poor dry soils with low fertility soil. Some caution should be taken when growing yarrow, as in the right conditions, it can become invasive and will then be in need of control.[图片]How to Grow Yarrow Once you have planted your yarrow, it needs little care. It doesn’t need to be fertilized and only needs to be watered during times of severe drought. While yarrow needs little care, it is susceptible to a few diseases and pests. Most commonly, plants will be affected by either botrytis mold or powdery mildew. These will both appear as a white powdery covering on the leaves. Both can be treated with a fungicide. Yarrow plants are also occasionally affected by spittlebugs.[图片]Using Yarrow Herb Yarrow has many uses as an herb. It is commonly used as a medicinal herb that can treat the bleeding of minor wounds, swollen or cramping muscles, reducing fever or to help with relaxing. As with any medicinal herb, yarrow herb should not be taken without first consulting a physician. On the non-medicinal side, yarrow herb is an astringent and makes a good facial wash or shampoo. Whether you grow yarrow as a decorative plant or an herb, you can be sure that it will add beauty to your garden. Since yarrow care is so easy, you have nothing to lose by giving this ancient herb a small place in one of your flower beds.

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2017年08月25日

There are many varieties of Artemisia, also known as mugwort and wormwood plant. One of the most common varieties grown for its sweet-smelling, silvery foliage is sweet wormwood (A. annua) or sweet Annie plant. Growing sweet Annie and other wormwood plants is easy. They make interesting additions to nearly any garden as they’re quite adaptable and hardy plants. In fact, some varieties are even considered invasive if not kept properly maintained. Let’s look at how to grow wormwood plant in your garden.[图片]How to Grow Wormwood Plant Grow wormwood or sweet Annie plant in a sunny location and well-drained soil. This plant doesn’t like being overly wet. Wormwood is generally planted in spring. If starting plants from seeds, sow the small seeds in flats and set the seedlings out in the garden well after the last frost in spring. Once established, wormwood plants require little care. In addition to occasional watering, these plants can be fertilized once a year. Light pruning can be performed to help keep these plants from becoming unruly, especially the spreading varieties. Wormwood plants are not typically affected by many disease problems, other than root rot from overly wet soil. Their scented foliage also deters many garden pests.[图片]Growing Sweet Annie Plant Sweet Annie is typically grown in the garden for its feathery, sweet-smelling foliage and yellow blooms, which are often used in floral decorations and wreaths. Although this variety is considered an annual, sweet Annie generally reseeds itself readily in the garden and in some cases, can become a nuisance. The feathery, fern-like foliage appears in spring and blooms in late summer. As sweet Annie takes up space in the garden, growing to about 2 feet tall, allow plenty of room for it in the garden.[图片]Harvest sweet Annie plant just as its blooms begin to appear in late summer for use in floral arrangements or wreaths. When drying sweet Annie, place branches in small bundles and hang upside down in a dark, well-ventilated area for about two to three weeks or until dry. When collecting seeds, cut the foliage to the ground (leave some plants remaining for self-seeding) and place in a paper bag. Allow to dry and then gently shake the seeds loose. Growing sweet Annie plants, like all other wormwood varieties, is easy. These plants make great additions to many gardens and can even be grown in containers. Their attractive, sweet-smelling foliage provides year-round interest and also deters many common garden pests. Best of all, sweet Annie plants require little maintenance once established.

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2017年08月25日

Watercress is a sun-loving perennial that grows along running waterways, such as streams. It has a peppery taste that is delicious in salad mixes and is especially popular in Europe. Watercress is high in iron, calcium and folic acid and is also rich in vitamins A and C. If you love the flavor of this green, you may be wondering if you can grow container watercress herbs and, if so, how do you grow watercress in pots?[图片]How Do You Grow Watercress in Pots? If you have a water feature in the garden, it is a great place for growing watercress in containers, as you are able to mimic the native watery conditions in which cress thrives. You may also grow container watercress herbs in a bucket with 2 to 3 inches of water, allowing the soil to stay saturated. The key is to keep the roots submerged under water. The water should be changed once or twice a week. While watercress will do well in a variety of soil conditions, its ideal range is between a pH of 6.5-7.5. Potted watercress plants should use a soilless mix containing perlite or vermiculite combined with peat. Use a saucer beneath the plant and keep it filled with water to provide constant moisture. Watercress can be propagated via stem cuttings or sown from seeds. Sow the seed just below the surface, about ¼ inch, three weeks before the last frost-free date in your region. It is important to keep the soil of potted watercress plants moist or the plant will not germinate. Seeds can be germinated inside or out in cool, 50 to 60 F. (10 to 16 C.), and wet conditions. Space the plants 8 inches apart when transplanting and place in a sunny outdoor area.[图片]Some recommended varieties of watercress are: Garden cress, Curly cress and Peppergrass (annuals) Winter cress (biennial) Big Leaf cress (perennial) Care of Potted Watercress Care of potted watercress is fairly simple, provided the plant is kept wet. Watercress doesn’t have high nutrient needs, although it may become deficient in phosphorus, potassium or iron. Phosphate deficiencies appear as stunted and dark colored foliage while potassium deficiencies create scorching on older leaves. Yellowing, often in winter, may indicate an iron deficiency. To combat these, mix a water soluble fertilizer in with the water according to the recommended rates.[图片]A few pests such as whitefly, spider mites, and snails may assault your potted watercress plants. Insecticidal soap can control whitefly and natural predators such as lady beetles, predatory mites and thrips can control spider mites. Snails can be trapped or picked off by hand. The tiny, dime-sized leaves of the watercress can be harvested throughout the year. The flavor is best during the cooler months of the year and lessens in flavor once the plant has flowered or temps rise above 85 F (30 C.). Harvest watercress by cutting the plant back to 4 inches and then allow it to re-grow. The leaves can be refrigerated for about a week but are best used fresh for culinary or medicinal purposes.

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