动态第582页 - 绿手指 - 养花技巧、花生病了怎么办、花园打理和设计

2017年09月25日

Scientific Name Aeschynanthus radicans Jack [图片]Common Names Lipstick Plant, Lipstickplant, Basket Vine, Basketvine Scientific Classification Family: Gesneriaceae Genus: Aeschynanthus Flower Color: Red with purple calyces Bloom Time: Mid summer to early winter Description Aeschynanthus radicans is a vine-like plant with opposite, leathery, fleshy, ovate to lanceolate, green leaves, up to 3 inches (7.5 cm) long. The flowers are red with purple calyces, terminal, tubular, up to 3 inches (7.5 cm) long. [图片]How to Grow and Care Aeschynanthus are perfect as hanging or trailing plants. They require high humidity and warmth throughout the growing season, as well as strong (but not direct) light. After the season is over, cut the trailing stems back in preparation for another year—otherwise, it will tend toward leginess. Do not spray plants in bloom. These are perfect for a greenhouse, sunroom or conservatory. Repotting depends on your container choice. For hanging plants, you should repot in the beginning of every growing season. You can keep the plant in the same basket year after year, but you’ll still need to refresh the soil and, if the plant has become too large, divide it. You can pot the division up separately. If you’re growing in a container, repot either annually or every other year, depending on the size of the plant. Take cuttings in the spring, when the plant resumes normal growth. To successfully root cuttings, use a rooting hormone and provide bottom heat or use a covered rooting container. Take a cutting with several leaves and a length of stem. Strip away the bottom one or two sets of leaves to expose one or two growing nodes. Dip these into rooting hormone (if you’re using it), then bury the cutting and the exposed nodes into a clean potting mix. [图片]Origin Native to the humid tropics of the Malay Peninsula south to Java.

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2017年09月25日

Scientific Name Aeonium arboreum (L.) Webb & Berthel [图片]Common Names Thickleaf Aeonium, Pinwheel Desert Rose, Fisiulera, Tree Aeonium, Tree Anemone, Houseleek Tree, Irish Rose Synonyms Sempervivum arboreum, Aeonium korneliuslemsii Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Aeonium [图片]Description Aeonium arboreum is a tree-like succulent which forms branched stems up to 3 feet (90 cm) tall. The leaves are up to 3 inches (7.5 cm) long and spoon-shaped and shiny green. The leaf rosettes are arranged at the ends of its branches. These plants grow quickly and produce small, star-like, yellow flowers on racemes from late winter through early spring. Flowers stems emerge from the center of the rosettes. The rosette die after flowering. Aeonium arboreum – Tree Aeonium Houseleek Tree Hardiness USDA hardiness zone 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C). [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… – See more at: How to Grow and Care for Aeonium. 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. Aeoniums go dormant in summer; cuttings taken while plants are dormant don’t root. Each leaf rosette dies after it blooms. Origin Native to North Africa and Canary Islands. Subspecies, Varieties, Forms, Cultivars and Hybrids Aeonium arboreum var. albovariegatum Aeonium arboreum var. atropurpureum Aeonium arboreum var. rubrolineatum Aeonium arboreum ‘Zwartkopf’

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2017年09月25日

Scientific Name Aeonium arboreum (L.) Webb & Berthel [图片]Common Names Thickleaf Aeonium, Pinwheel Desert Rose, Fisiulera, Tree Aeonium, Tree Anemone, Houseleek Tree, Irish Rose Synonyms Sempervivum arboreum, Aeonium korneliuslemsii Scientific Classification Family: Crassulaceae Subfamily: Sedoideae Tribe: Sedeae Subtribe: Sedinae Genus: Aeonium [图片]Flower Color: Yellow Bloom Time: Mid spring to early summer Description Aeonium arboreum is a medium-green succulent which forms branched stems, up to 3 feet (90 cm) tall, looking like a miniature tree. Rosettes are formed at the ends of the stems. They grow quickly and produce abundant yellow flowers form long clusters in mid spring to early summer. [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… – See more at: How to Grow and Care for Aeonium. 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. Aeoniums go dormant in summer; cuttings taken while plants are dormant don’t root. Each leaf rosette dies after it blooms. Origin Native to North Africa and Canary Islands.

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2017年09月25日

Scientific Name Achillea millefolium L. Common Names Yarrow, Common Yarrow, Milfoil, Gordaldo, Nosebleed Plant, Old Man’s Pepper, Devil’s Nettle, Sanguinary, Soldier’s Woundwort, Thousand-Leaf, Thousand-Seal [图片]Synonyms Achillea borealis, Achillea lanulosa, Achillea magna Scientific Classification Family: Asteraceae Subfamily: Asteroideae Tribe: Anthemideae Subtribe: Matricariinae Genus: Achillea Flower Color: White Bloom Time: June to September Description Achillea millefolum is a flowering plant, up to 2.6 feet (80 cm) tall, with branched, bright green stalks at the peak. Leaves are alternately arranged and hairy. The white flower heads are about 0.12 inch (3 mm) wide, 0.2 inch (5 mm) long and are combined in thyroid tassel. [图片]How to Grow and Care It is most often propagated by division, so chances are you’ll buy your Yarrow as a plant. Space your plants 12 to 24 inches (30 to 60 cm) apart if you’re planting more than one plant. You can also start your Yarrow 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 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 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. Yarrows will even grow in very poor dry soils with low fertility soil. [图片]Origin Native to temperate regions of the Northern Hemisphere in Asia, Europe, and North America.

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2017年09月25日

Scientific Name Achillea filipendulina Lam. [图片]Common Names Fern-Leaf Yarrow, Milfoil, Nosebleed Synonyms Achillea eupatorium, Achillea filicifolia, Tanacetum angulatum Scientific Classification Family: Asteraceae Subfamily: Asteroideae Tribe: Anthemideae Subtribe: Matricariinae Genus: Achillea [图片]Flower Color: White and yellow Bloom Time: April to June Description Achillea filipendulina is a flowering herbaceous perennial plant, up to 4 feet (1.2 m) high. This species forms a tall, bushy mound of fragrant ferny foliage, with huge clusters of golden-yellow flowers appearing on tall stems. The leaves are linear, pinnate, lobed and serrated, hairy and rough. The flowering period is mid to late summer. Achillea filipendulina - Fern Leaf Yarrow [图片]How to Grow and Care It is most often propagated by division, so chances are you’ll buy your Yarrow as a plant. Space your plants 12 to 24 inches (30 to 60 cm) apart if you’re planting more than one plant. You can also start your Yarrow 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 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 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. Yarrows will even grow in very poor dry soils with low fertility soil. Origin Native to the Caucasus Mountains, in southeastern Europe.

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2017年09月25日

Scientific Name Acacia melanoxylon R.Br. [图片]Common Names Australian Blackwood, Black Acacia, Sally Wattle, Lightwood, Hickory, Mudgerabah, Tasmanian Blackwood, Black Wattle, Blackwood Acacia Synonyms Acacia arcuata, Acacia melanoxylum, Mimosa melanoxylon, Mimosa melanoxylum, Racosperma melanoxylon, Racosperma melanoxylon Scientific Classification Family: Fabaceae Subfamily: Mimosoideae Tribe: Acacieae Genus: Acacia Flower Color: Creamy Bloom Time: From late winter into spring [图片]Description Acacia melanoxylon is a very quick-growing tree up to 40 feet (12 m) tall, with a 20 feet (6 m) wide and in maturity an oval shaped crown. It has rough dark gray bark with vertical fissures and mid-green leaf-like flattened stems, called “phyllodes”, that are up to 5 inches (13 cm) long by about an inch (2.5 cm) wide, with one margin straight and the other curved. Small creamy flowers are in a small ball-like cluster from late winter into spring and are followed by thin curling seed pods that hang in brownish sheaves. Acacia melanoxylon - Australian Blackwood [图片]How to Grow and Care Acacia requires full sunlight and grows in nearly any type of soil, including sand, clay, or soil that is highly alkaline or acidic. Although Acacia prefers well-drained soil, it tolerates muddy soil for short periods of time. Acacia is basically a plant-it-and-forget-it type of tree, although a young tree may need protection from wildlife while it develops its defense system. During the first year, the tree benefits from an orchid fertilizer every three to four weeks. After that time, you can feed the tree a general purpose fertilizer once every year, but it isn’t an absolute requirement. Acacia requires little or no water. Acacia may need occasional pruning during the dry months. Avoid pruning leafy, green areas and trim only dead growth. Although the tree is disease-resistant, it can sometimes be affected by a fungal disease known as anthracnose. Additionally, watch for pests such as aphids, thrips, mites and scale. Origin Native to Australia.

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2017年09月25日

Scientific Name Acacia alata R.Br. Common Names Winged Wattle Synonyms Acacia alata var. alata, Acacia uniglandulosa, Mimosa alata, Phyllodoce alata Scientific Classification Family: Fabaceae Subfamily: Mimosoideae Tribe: Acacieae Genus: Acacia [图片]Flower Color: White, cream or golden yellow Bloom Time: Spring Description Acacia alata is a frost-hardy, large, multi-branched shrub, growing up to 7 feet (2.1 m) high and up to 40 inches (1 m) across. Its branchlets are often bent alternately in different directions. The phyllodes (modified petioles) are reduced in size and give the impression of cladodes (branches that resemble leaves). The wings of these phyllodes are up to 0.8 inch (2 cm) wide and up to 3 inches (7.5 cm) long. Furthermore, each phyllode extends into a spine. The inflorescence is simple with mostly two flowers per axil, but sometimes distributed in racemes. The globular heads contain 4 to 15 flowers. These flowers can be white, cream or golden yellow. [图片]How to Grow and Care Acacia requires full sunlight and grows in nearly any type of soil, including sand, clay, or soil that is highly alkaline or acidic. Although Acacia prefers well-drained soil, it tolerates muddy soil for short periods of time. Acacia is basically a plant-it-and-forget-it type of tree, although a young tree may need protection from wildlife while it develops its defense system. During the first year, the tree benefits from an orchid fertilizer every three to four weeks. After that time, you can feed the tree a general purpose fertilizer once every year, but it isn’t an absolute requirement. Acacia requires little or no water. Acacia may need occasional pruning during the dry months. Avoid pruning leafy, green areas and trim only dead growth. Although the tree is disease-resistant, it can sometimes be affected by a fungal disease known as anthracnose. Additionally, watch for pests such as aphids, thrips, mites and scale. [图片]Origin Native to Western Australia.

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2017年09月25日

Scientific Name Abutilon pictum (Gillies ex Hook. & Arn.) Walp. [图片]Common Names Redvein Abutilon, Painted Indian Mallow, Red Vein Indian Mallow, Flowering Maple, Redvein Flowering Maple, Red Vein Chinese Lanterns, Chinese Lantern Synonyms Sida picta (basionym), Abutilon striatum, Abutilon pleniflorum, Abutilon pseudostriatum, Abutilon thompsonii, Abutilon thompsonii, Abutilon venosum, Sida striata Scientific Classification Family: Malvaceae Subfamily: Malvoideae Tribe: Malveae Genus: Abutilon [图片]Flower Color: Yellow to orange-red Bloom Time: April to September Description Abutilon pictum is an evergreen shrub, up to 16 feet (5 m) tall and up to 6 feet (1.8 m) wide. The leaves are 3- to 5-lobed and up to 6 inches (15 cm) long. The flowers are yellow to orange-red, bell shaped, with prominent dark red veining, and five petals, up to 1.6 inches (4 cm) long. It blooms from April to September. Abutilon pictum - Painted Indian Mallow How to Grow and Care [图片]Abutilon is not an especially difficult plant to grow. During warmer, dry winters, they are sometimes affected by spider mites, and they are known for leggy growth. To encourage bushy growth, prune the plant by 25 percent to 40 percent in the late winter, right when new growth is about to start. Also, throughout the summer, occasionally pinch off new growth to encourage healthy growth. When pruning, make sure to stagger your cuts and remove some large branches to open the plant’s canopy. As a final note, these plants dislike acidic soil, so it is not necessary to add additional lime to your potting mix. Instead, stick with the basic peat-based potting soil and make sure to refresh it as the mixture decomposes and becomes more acidic over time. Abutilon is a relatively fast-growing plant, especially when they’re young. Consequently, younger plants might need to be repotted twice a year, once at the beginning of the growing season and once in the middle. Older plants, however, benefit from being slightly pot-bound, so should be repotted either every other year or yearly into only slightly larger pots. Pot-bound plants tend to grow more vigorously and bloom better. Origin Native to southern Brazil and Argentina, and Paraguay and Uruguay.

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2017年09月25日

Scientific Name Abelmoschus esculentus (L.) Moench Common Names Okra, Okro, Ladies’ Fingers, Ochro Synonyms Hibiscus esculentus (basionym), Abelmoschus bammia, Abelmoschus longifolius, Abelmoschus officinalis, Abelmoschus praecox, Abelmoschus tuberculatus, Hibiscus ficifolius, Hibiscus hispidissimus, Hibiscus longifolius, Hibiscus praecox [图片]Scientific Classification Family: Malvaceae Tribe: Hibisceae Genus: Abelmoschus Flower Color: White to yellow Bloom Time: Blooms freely throughout the growing season to frost Description Abelmoschus esculentus is a perennial, often cultivated as an annual in temperate climates, and often grows up to 6.7 feet (2 m) tall. The leaves are up to 8 inches (20 cm) long and broad, palmately lobed with 5 to 7 lobes. The flowers are up to 3.2 inches (8 cm) in diameter, with 5 white to yellow petals, often with a red or purple spot at the base of each petal. They last only for one day, but plants bloom freely throughout the growing season to frost. The fruit is a capsule up to 17.2 inches (18 cm) long with pentagonal cross-section, containing numerous seeds. [图片]Hardiness USDA hardiness zone 5a to 11b: from −20 °F (−28.9 °C) to 50 °F (+10 °C). How to Grow and Care Okra needs full sun. It will grow in ordinary garden soil but does best in fertile loam, particularly where a nitrogen-fixing crop, such as early peas, grew previously. In the South, plant the first crop in the early spring and a second crop in June. In short-season areas, start plants indoors 6 weeks before setting them out (3 to 4 weeks after the last frost date). Sow two seeds per peat pot and clip off the weaker seedling. When seeding Okra directly in the ground, wait until after the soil has warmed and the air temperature is at least 60°F (16°C). Use fresh seed, and soak it overnight or nick each seed coat with a file to encourage germination. Sow seed 0.5 inch (1.2 cm) deep in light soil and 1 inch (2.5 cm) deep in heavy soil; spacing is 3 inches (7.5 cm) apart in rows 3 feet (90 cm) apart. Thin seedlings to 18 to 24 inches (45 to 60 cm) apart, always leaving the strongest of the young plants. [图片]Origin The geographical origin of Okra is disputed, with supporters of West African, Ethiopian, and South Asian origins. The plant is cultivated in tropical, subtropical and warm temperate regions around the world.

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2017年09月25日

Scientific Name Abutilon megapotamicum (A. Spreng.) A. St.-Hil. & Naudin Common Names Trailing Abutilon, Brazilian Bell Flower, Kriechende Samtpappel (German), Chapéu de Cardeal (Portuguese), Lantana Japonêsa (Portuguese), Lanterna Chinesa (Portuguese), Sininho (Portuguese) [图片]Synonyms Sida megapotamica (basionym) Scientific Classification Family: Malvaceae Subfamily: Malvoideae Tribe: Malveae Genus: Abutilon [图片]Flower Color: Red and yellow Bloom Time: Summer and autumn Description Abutilon megapotamicum – Trailing Abutilon is a deciduous or partially evergreen shrub, up to 6 feet (1.8 m) tall. The leaves are ovate to shallowly three-lobed and up to 3.1 inches (8 cm) long. The bell-shaped flowers are hermaphrodite (have both male and female organs), yellow with a red base, with five petals and up to 1.6 inches (4 cm) long. [图片]How to Grow and Care Abutilon is not an especially difficult plant to grow. During warmer, dry winters, they are sometimes affected by spider mites, and they are known for leggy growth. To encourage bushy growth, prune the plant by 25 percent to 40 percent in the late winter, right when new growth is about to start. Also, throughout the summer, occasionally pinch off new growth to encourage healthy growth. When pruning, make sure to stagger your cuts and remove some large branches to open the plant’s canopy. As a final note, these plants dislike acidic soil, so it is not necessary to add additional lime to your potting mix. Instead, stick with the basic peat-based potting soil and make sure to refresh it as the mixture decomposes and becomes more acidic over time. Abutilon is a relatively fast-growing plant, especially when they’re young. Consequently, younger plants might need to be repotted twice a year, once at the beginning of the growing season and once in the middle. Older plants, however, benefit from being slightly pot-bound, so should be repotted either every other year or yearly into only slightly larger pots. Pot-bound plants tend to grow more vigorously and bloom better. Origin Native to the dry mountain valleys in Brazil.

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