动态第493页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2017年10月01日

Scientific Name Euphorbia horrida Boiss.[图片]Common Names African Milk Barrel Synonyms Euphorbia horrida var. horrida Scientific Classification Family: Euphorbiaceae Subfamily: Euphorbioideae Tribe: Euphorbieae Subtribe: Euphorbiinae Genus: Euphorbia[图片]Description Euphorbia horrida is a spiny, cactus-like, succulent shrub, up to 4.9 feet (1.5 m) tall, with blue-green, heavily-ridged spiny stems, up to 6 inches (15 cm) in diameter. The formidable rows of spines up to 1.6 inches (4 cm) long are actually the dried remnants of its flower stalks and are very rigid. Blooms in summer. Flowers are very small, green and yellow, up to 0.16 inch (4 mm) in diameter.[图片]How to Grow and Care Euphorbias are very easy to care for. They require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they cannot tolerant wet soil. Unlike most succulents, Euphorbia does not handle long periods of drought well. It may need weekly watering during the summer. Water whenever the soil is dry several inches below the surface. Water deeply, but don’t let them sit in wet soil, which can cause root rot. Add some organic matter or fertilizer to the planting hole. If you are growing them in containers or your soil is poor, feed with a half-strength fertilizer monthly.

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2017年10月01日

Scientific Name Euphorbia polygona Haw.[图片]Common Names African Milk Barrel Synonyms Euphorbia polygona var. polygona Scientific Classification Family: Euphorbiaceae Subfamily: Euphorbioideae Tribe: Euphorbieae Subtribe: Euphorbiinae Genus: Euphorbia[图片]Description Euphorbia polygona is a spiny dioecious spurge with simple or basally clumping stems of glaucous grey-green with beautiful “heads” of dark purple flowers. The stem is up to 5 feet (1.5 m) and up to 4 inches (10 cm) in diameter. The fruit is up to 0.2 inch (6 mm) in diameter, globose, subsessile with dense grey hairs.[图片]How to Grow and Care Euphorbias are very easy to care for. They require a little pampering to become established, but once they are, they are self-sufficient. In fact, more die from too much care and watering than from neglect. Euphorbias need well-draining soil and lots of sunlight. They are not particular about soil pH, but they cannot tolerant wet soil. Unlike most succulents, Euphorbia does not handle long periods of drought well. It may need weekly watering during the summer. Water whenever the soil is dry several inches below the surface. Water deeply, but don’t let them sit in wet soil, which can cause root rot. Add some organic matter or fertilizer to the planting hole. If you are growing them in containers or your soil is poor, feed with a half-strength fertilizer monthly. Euphorbia can be grown from seed, but they can be difficult to germinate (or even find). It is usually propagated by cuttings. This can be tricky, because of the exuding sap.

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2017年10月01日

Scientific Name Sansevieria trifasciata Prain[图片]Common Names Snake Plant, Mother-in-Law’s Tongue, Mother-in-Law’s Nose, Saint George’s Sword, African Bowstring Hemp Synonyms Sansevieria laurentii Scientific Classification Family: Asparagaceae Subfamily: Crassuloideae Genus: Sansevieria[图片]Description Sansevieria trifasciata (Snake Plant) is an evergreen perennial plant forming dense stands, spreading by way of its creeping rhizome, which is sometimes above ground, sometimes underground. The stiff leaves grow vertically from a basal rosette. Mature leaves are dark green with light gray-green cross-banding and usually range up to 3 feet (90 cm) long and 2.4 inches (6 cm) wide. The small, tubular, pale green flowers bloom in summer or autumn.[图片]How to Grow and Care Place Sansevierias in moderately bright or filtered light. Good locations include a spot in front of a north-facing window or in front of a bright, sunny window covered by a sheer curtain. Although the plant tolerates low light, bright light brings out the colors in the leaves. However, intense light may cause the edges of the leaves to turn yellow.[图片]Allow the soil to dry completely before watering, and then water deeply until water drips through the drainage hole. Allow the pot to drain and then discard water that remains in the saucer. Never allow the soil to become soggy and never let the pot stand in water. Water sparingly throughout the winter.

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2017年10月01日

Scientific Name Adenium obesum subsp. socotranum (Vierh.) Lavranos[图片]Common Names Socotran Desert Rose, Aden Rose of Socotra Synonyms Adenium socotranum Scientific Classification Family: Apocynaceae Subfamily: Apocynoideae Tribe: Wrightieae Genus: Adenium[图片]Description Adenium obesum subsp. socotranum is by far the largest species, reaching a height of 15 feet (4.6 m) with a cylindrical trunk up to 8 feet (2.4 m) in diameter at the base. Plants rarely leaf out before mid summer, and produce stem growth for only a few weeks. The flowers are pink, up to 5 inches (13 cm) in diameter, and appear for a few weeks in spring while the plant is leafless.[图片]How to Grow and Care These are not difficult plants to grow well, provided they get enough sunlight and warmth. Like all succulents, they cannot tolerate sitting in water, and if you err, do it on the side of too little water. Use a specialized soil mix designed for cacti and succulents.[图片]Repot as needed, preferably during the warm season. To repot a succulent, make sure the soil is dry before repotting, then gently remove the plant from the pot. Knock away the old soil from the roots, making sure to remove any rotted or dead roots in the process. Treat any cuts with a fungicide and antibacterial solution. Place the plant in its new pot and backfill with potting soil, spreading the roots out as you repot.[图片]Origin It is endemic to the island of Socotra.

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2017年10月01日

Scientific Name Sedum adolphii Raym.-Hamet[图片]Common Names Adolph’s Sedum, Golden Sedum Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Sedum[图片]Description Sedum adolphii is a lovely high colored tender succulent, up to 8 inches (20 cm) tall. It is a rangy creeper, developing casual rosettes of football shaped yellow green leaves, up to 1.4 inches (3.5 cm) long. Only when grown in the sun do they take on the orange-red highlights that make it a visual delight. As rosettes age they produce new leaves at the center, shedding the oldest that drop off and root where conditions are right. It blooms in spring with small cream colored flower heads produced at the tips.[图片]How to Grow and Care When growing Sedum, keep in mind that Sedum plants need very little attention or care. They will thrive in conditions that many other plants thrive in, but will do just as well in less hospitable areas. They are ideal for that part of your yard that gets too much sun or too little water to grow anything else. A common name for Sedum is Stonecrop, due to the fact that many gardeners joke that only stones need less care and live longer.[图片]Sedum is easily planted. For shorter varieties, simply laying the plant on the ground where you want it to grow is normally enough to get the Sedum plant started there. They will send out roots from wherever the stem is touching the ground and root itself. If you would like to further ensure that the plant will start there, you can add a very thin covering of soil over the plant. For taller Sedum varieties, you can break off one of the stems and push it into the ground where you would like to grow it.[图片]Origin Native to the Cape region of South Africa.

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2017年10月01日

Scientific Name Aloe africana Mill.[图片]Common Names African Aloe, Spiny Aloe, Uitenhage Aloe Synonyms Aloe angustifolia, Aloe bolusii, Aloe perfoliata var. africana, Aloe pseudoafricana, Pachidendron africanum, Pachidendron angustifolium Scientific Classification Family: Xanthorrhoeaceae Subfamily: Asphodeloideae Genus: Aloe[图片]Description Aloe africana is a solitary, often unbranched, small, tree-like Aloe, usually up to 6 feet (1.8 m) but sometimes taller with rosettes densely crowded with gracefully arching 2 foot (60 cm) long lance-shaped thick grayish blue-green leaves that have prominent sharp red teeth along the margins and in a row running along the middle of the lower surface with older leaves skirting the trunk. Flowering on this species can happen at other times but most often in mid-winter to early spring (January-March) with an unbranched to fewbranched up to 3 foot (90 cm) inflorescence of erect long-tapering terminal spikes of flowers that are orange in bud and turn yellow just prior to opening from the bottom of the spike upwards. The individual flowers are held in a downward inclination but uniquely turn upwards towards the tips, making identification of this species quite easy.[图片]How to Grow and Care Aloe is a very forgiving plant, and a well-grown Aloe can be quite beautiful. As with all succulents, it’s essential that Aloe is never allowed to sit in stagnant water, and the plant should be carefully monitored to watch for signs of overwatering. Water generously in the summer and nearly cease watering in the winter. Do not let water stand in the rosettes. Prefers warmer temperatures of 70ºF/21ºC to 80ºF/27ºC, but will survive down to 40ºF/4.5ºC.[图片]Aloe are not particularly fast-growing and will only rarely need repotting. Repot plants in the spring that are tipping over their pots or have ceased growing. Use a fast-draining potting mix with one-third sand or pebbles. During repotting of a larger plant, it is possible to carefully divide the root ball.[图片]Origin Native to South Africa (Eastern Cape).

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2017年10月01日

Scientific Name Trichodiadema densum Schwantes[图片]Common Names Miniature Desert Rose, African Bonsai Synonyms Mesembryanthemum densum, Mesembryanthemum barbatum Scientific Classification Family: Aizoaceae Genus: Trichodiadema[图片]Description Trichodiadema densum is not a cactus but could be mistaken for one; its leaves are succulent and end in a circle of stiff hairs, giving the plant a similar appearance to some species in the cactus genus Mammillaria. It is a compact, mat-forming perennial short shrub, up to 4 inches (10 cm) high, with woody stems and thick fleshy roots. The green succulent leaves are up to 0.8 inch (2 cm) long and each tipped with a crown of white hairs. The daisy-like flowers are vivid carmine pink up to 2 inches (5 cm) in diameter, opening in the morning and closing later in the day. The flowers appear from autumn through to spring.[图片]How to Grow and Care The basics of Mesemb care are very simple, with free-draining soil, plenty of sun and ventilation, and regular light watering in the right season. Yet the difficulties are endless, trying to adapt to the mesembs’ own adaptability and to follow their growth habits in your particular conditions. Mesembs require a loam-based compost with the addition of extra drainage material such as horticultural grit or perlite. They all like good light conditions and plenty of ventilation.[图片]Some are relatively cold-hardy and can even survive mild winters outside. Most will survive temperatures down to freezing point. There are some Mesembs which begin to grow in the autumn as the temperature drops and the days get shorter. Because different genera within the Mesemb family have different growing conditions, care mast be taken with watering.

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2017年10月01日

Sempervivum arachnoideum (Cobweb Houseleek, Spider Web Hens and Chicks) is low-growing, evergreen, perennial succulent, native to the mountain of Europe from the Pyrenees to the Carpathians.[图片]The leaves of Cobweb Houseleek are emollient, haemostatic, ophthalmic and sedative. The crushed plant, or its juice, is applied externally to boils, wounds etc and is also used to stop nose bleeds. The slightly warmed juice has been used to relieve ear inflammations and toothaches can be relieved by chewing on the leaves. When macerated and infused in vinegar, the plant can be used to get rid of warts and corns.[图片]The leaves are harvested in the summer and are best used when fresh since they are difficult to dry properly. The leaf pulp is used to make a cooling face mask for reddened or sunburnt skin.[图片]

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2017年10月01日

Crassula ovata, commonly known as Jade Plant is a succulent plant, native to South Africa and it is one of the most popular houseplants grown worldwide.[图片]But Jade Plant is more than just a pretty plant. In South Africa it is used by the natives as a treatment for nausea and as a vermifuge, to treat epilepsy, diarrhea, cuts, sore, warts, corns, and to purge the intestines.[图片]For cuts and sores the leaves have to be cut in half and put on the sore and put a plaster over it. Redress morning and afternoon. It help for the pain as well. Like a local anesthetic. Slice a leaf in half and attach the moist inside to the wart for a few hours, or overnight. The unsightly growth should fall off with just three applications.[图片]In Africa leaves are boiled in milk and consumed to stop diarrhea.

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2017年10月01日

Jade Plant (Crassula ovata) is recommended for warts in folk medicine. A leaf is cut open and the moist flesh is bound over the wart for a series of days. If the treatment is successful, the wart falls off after prolonged exposure.[图片]Jade Plant is also used as a treatment for nausea, and in Africa it is used to treat epilepsy, corns, diarrhea, and to purge the intestines. The Khoi and other Africans used the roots for food, grated and cooked, eaten with thick milk. They also used the leaves for medicinal purposes. The leaves were boiled in milk and used to treat epilepsy and corns, as a purgative and as a remedy for diarrhea.[图片]The Feng Shui masters believe that Jade Plants have calming effects.

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