动态第480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02日

Scientific Name Sedum furfuraceum Moran Common Names Bonsai Sedum Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Sedum[图片]Description Sedum furfuraceum is a low growing, branching succulent up to 4 inches (10 cm) tall and spreading slowly up to 1 foot (30 cm) wide, on creeping stems with small upturned up to 0.4 inch (1 cm) long, egg-shaped, dark green leaves, covered in scurfy, whitish scales and aligned in tight spiral rows. Leaves are often reddish purple in bright light and lower leaves turn a reddish-orange hue and later drop off to expose twisted, thick, gray-white stems. In early spring appear the pinkish-white, star-like flowers that each lasts for about 10 days.[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.

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2017年10月02日

Scientific Name Crassula sarcocaulis Eckl. & Zeyh. Common Names Bonsai Crassula, Bonsai Jade Synonyms Crassula lignosa, Crassula parvisepala, Crassula sarcocaulis subsp. sarcocaulis[图片]Scientific Classification Family: Crassulaceae Subfamily: Crassuloideae Genus: Crassula[图片]Description Crassula sarcocaulis is a low growing shrub, up to 2 feet (60 cm) tall, with a fat gnarly trunk and stems with peeling bark bearing narrow green succulent leaves and attractive terminal flower clusters in summer. The flowers start as small pink flower buds that open to show off bell-shaped pale-pink flowers.[图片]How to Grow and Care Crassula are easy to grow, but they are susceptible to mealy bugs and fungal diseases. As with all succulents, overwatering is sure to be fatal, so err on the side of too dry rather than too wet. Never let your Crassula sit in water. If you water from beneath by letting the plant sit in a saucer of water, make sure to pour off any excess water after a few minutes. Crassula are generally started by division, offsets or leaf cuttings. Plants can be easily propagated from a single leaf: sprout leaves by placing them into a succulent or cacti mix, then covering the dish until they sprout.[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 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. Place the plant in its new pot and backfill with potting soil, spreading the roots out as you repot.

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2017年10月02日

Scientific Name Agave cantala (Haw.) Roxb. ex Salm-Dyck Common Names Cantala, Cantala Fibre, Bombay Aloe, Cebu Maguey, Manila Maguey[图片]Synonyms Furcraea cantala Scientific Classification Family: Asparagaceae Subfamily: Agavoideae Genus: Agave[图片]Description Agave cantala is an evergreen, succulent, perennial plant up to 8.2 feet (2.5 m) tall, forming a rosette of leaves up to 6.5 feet (2 m) long. Towards the end of its life the plant puts up a flowering stem up to 26 feet (8 m) tall.[图片]How to Grow and Care Agave is not a difficult plant to grow. They’re slow-growing and dramatic and will even thrive on a bit of neglect. If you’re the type of person who likes to fuss with houseplants and water a lot, Agave is probably not the plant for you. If, however, you’re the type of person who likes to set it and forget it, and you have a sunny window, Agave might the way to go. Be aware that some of the large varieties will eventually outgrow your room (unless you have a large greenhouse), and Agave can be aggressive. They have irritating sap and sometimes very sharp thorns that can cause injuries to small children and even pets. In general, Agave do not need to be repotted every year. Most of the species commonly found in cultivation grow very slowly and will take a long time to outgrow their pot.

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2017年10月02日

Scientific Name Epithelantha bokei L.D. Benson Common Names Pingpong Ball Cactus, Button Cactus, Boke’s Button Cactus[图片]Synonyms Epithelantha micromeris subsp. bokei Scientific Classification Family: Cactaceae Subfamily: Cactoideae Tribe: Cacteae Subtribe: Cactinae Genus: Epithelantha[图片]Description Epithelantha bokei is a disc-shaped or cylindrical cactus, up to 2 inches (5 cm) tall and usually unbranched. It is so thickly covered in pale-colored spines that it is white or yellowish in color. There are up to 90 on each areole. The delicate pale pink flowers are up to 0.7 inch (1.7 cm) long and wide. The red fruit is 0.4 inch (1 cm) long. Much of the plant is located below ground, with a few centimeters above. It contracts into the ground during dry periods.[图片]How to Grow and Care To encourage better flowering, allow the plants to enjoy a cooling period in the winter and suspend watering. Unlike many other cacti, which use their ribs as storage devices, the Mammillaria feature raised tubercles, from which spines emerge. When you water, the tubercles will expand to allow for increased water storage. The flowers emerge from the axils of these tubercles on the previous year’s growth, which accounts for their interesting halo effect. It’s imperative that the cactus is not exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. Lastly, make sure to fertilizer during the growing season for the best results.[图片]Repot as needed, preferably during the warm season. To repot a cacti, make sure the soil is dry before repotting, then gently remove the pot.

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2017年10月02日

Scientific Name Aeonium ‘Blushing Beauty’[图片]Common Names Blushing Aeonium Synonyms Aeonium ‘Blush’ Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Aeonium[图片]Description Aeonium ‘Blushing Beauty’ is a hybrid, made from a cross of Aeonium canariense with Aeonium arboreum ‘Zwartkopf’. This beautiful succulent has rosettes of green leaves tinged with red on top of short thick stems up to 3 feet (1.2 m) tall.[图片]How to Grow and Care Aeoniums do not like really hot or dry weather. They may go dormant in summer and do not require any water, except in very dry conditions. In extreme heat, their leaves will curl, to prevent excessive water loss. Growing them in moist shade will keep them growing, but their true growth season is winter to spring, when temperatures are cool (65–75˚F / 18–24˚C) and damp. In the winter, water whenever the soil has dried out. Test by poking your finger down into the soil an inch or two. Too much moisture or allowing them to sit in wet soil will cause root rot. Propagate Aeoniums by stem cuttings, except for unbranched species which die after flowering and are propagated from seed. Take cuttings when the plant is actively growing, usually fall in USDA zones 9 through 11.

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2017年10月02日

Scientific Name Dudleya caespitosa (Haw.) Britton & Rose Common Names Sea Lettuce, Sand Lettuce, Coast Dudleya, Coastal Dudleya, Bluff Lettuce[图片]Synonyms Cotyledon caespitosa, Cotyledon helleri, Cotyledon linguiformis, Cotyledon reflexa, Dudleya cotyledon, Dudleya helleri, Echeveria caespitosa, Echeveria californica, Echeveria cotyledon, Echeveria helleri, Sedum cotyledon Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Dudleya[图片]Description Dudleya caespitosa is a rosette form succulent up to 8 inches (20 cm) wide, containing up to 30 leaves. The leaves are fleshy, pale green, and cone-shaped to oblong, up to 1 inch (2.5 cm) wide and up to 0.4 inch (1 cm) thick. The stem is a caudex which grows erect up to 8 inches (20 cm) in height before branching into the inflorescence. Its color is variable, from green to red and yellow shades. At the top is a tall inflorescence which may hold 10 or 15 flowers on each of several branches. The flowers are bright yellow with pointed petals.[图片]How to Grow and Care Most of the myriad habitats Dudleyas occupy become dry in summer. Therefore, it is important to cut off water to Dudleyas in your garden during summer. Plants grown in sandy soils or containers are exceptions; they will accept infrequent summer watering as long as the soil drains well. The onset of fall or winter rains reawakens Dudleyas from drought-induced dormancy.

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2017年10月02日

Scientific Name Dudleya farinosa (Lindl.) Britton & Rose Common Names Bluff Lettuce, Powdery Liveforever, Powdery Dudleya, North Coast Dudleya, Sea Lettuce[图片]Synonyms Echeveria farinosa (basionym), Cotyledon compacta, Cotyledon eastwoodiae, Cotyledon farinosa, Cotyledon lingula, Cotyledon septentrionalis, Dudleya compacta, Dudleya eastwoodiae, Dudleya lingula, Dudleya septentrionalis, Echeveria compacta, Echeveria eastwoodiae, Echeveria farinosa, Echeveria lingula, Echeveria septentrionalis[图片]Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Dudleya[图片]Description Dudleya farinosa is a succulent plant, variable in appearance from drab to spectacular. It grows from a branching caudex and forms a basal rosette of wide, pointed, spade-shaped leaves, up to 2.4 inches (6 cm) across. The leaves are generally very pale green but they often have edges or tips of bright colors, particularly bright reds. The plant erects a tall stem which is pale green with pink or red tinting, atop which it bears a branching flower cluster with many pale to bright yellow flowers.[图片]How to Grow and Care Most of the myriad habitats Dudleyas occupy become dry in summer. Therefore, it is important to cut off water to Dudleyas in your garden during summer. Plants grown in sandy soils or containers are exceptions; they will accept infrequent summer watering as long as the soil drains well. The onset of fall or winter rains reawakens Dudleyas from drought-induced dormancy. Their shriveled leaves plump up quickly, growth resumes, and flowering occurs during the next spring or summer. Dudleyas are amazingly resilient; if a portion of a colony sloughs off a cliff face or is uprooted by a burrowing animal, it can persist for months until soil contact is reestablished. Species that naturally grow on ocean bluffs are also salt-spray tolerant.[图片]Dudleyas have their share of disease and pest problems. If you can prevent Argentine Ants from introducing mealybugs or aphids to your Dudleyas, they will be healthier.

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2017年10月02日

Scientific Name Sedum dasyphyllum L. Common Names Corsican Stonecrop, Thick-leaved Stonecrop, Thick Leaf Stonecrop, Blue Tears Sedum, Love and Tangles, Love and Tangle[图片]Synonyms Oreosedum dasyphyllum, Sedum burnatii, Sedum corsicum, Sedum glanduliferum, Sedum glaucum, Sedum moroderi, Sedum nebrodense Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Sedum[图片]Description Sedum dasyphyllum is a small perennial plant up to 5 inches (12.5 cm) tall when in flower, with green-turquoise or gray-green opposite leaves and a creeping stem forming shrubs. The flowers are white and small with little black dots on the petals and green ovaries.[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.

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2017年10月02日

Scientific Name Sedum dasyphyllum ‘Minor’ Common Names Corsican Stonecrop, Thick-leaved Stonecrop, Thick Leaf Stonecrop, Blue Tears Sedum, Love and Tangles, Love and Tangle[图片]Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Sedum[图片]Description Sedum dasyphyllum ‘Minor’ is a small, perennial succulent plant, up to 5 inches (12.5 cm) tall when in flower, with blue-green and purple (more purple in part sun), opposite leaves and a creeping stem forming shrubs. The flowers are white and small with little black dots on the petals and green ovaries.[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.

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2017年10月02日

Scientific Name Sedum rupestre L. Common Names Reflexed Stonecrop, Blue Stonecrop, Rock Stonecrop, Jenny’s Stonecrop, Prick Madam[图片]Synonyms Sedum reflexum Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Sedum[图片]Description Sedum rupestre is a mat-forming stonecrop with small, fleshy, gray-green leaves up to 0.75 inch (2 cm) long. It is an evergreen plant that grows up to 4 inches (10 cm) tall but spreads up to 24 inches (60 cm) wide. The yellow flowers are star-shaped, up to 0.5 inch (1.2 cm) wide, and appear in terminal cymes in summer.[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.

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