动态第509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29日

Scientific Name Fritillaria affinis (Schult. & Schult.f.) Sealy [图片]Common Names Checker Lily, Chocolate Lily Synonyms Fritillaria affinis var. affinis, Fritillaria esculenta, Fritillaria eximia, Fritillaria lanceolata, Fritillaria lunellii, Fritillaria multiflora, Fritillaria mutica var. gracilis, Fritillaria phaeanthera, Lilium affine Scientific Classification Family: Liliaceae Subfamily: Lilioideae Tribe: Lilieae Genus: Fritillaria [图片]Flower Color: Yellowish or greenish brown Bloom Time: Mid Spring Description Fritillaria affinis grows from a bulb, which resembles a small mass of rice grains. The stems are up to 4 feet (1.2 m) tall. The flowers are produced in the spring, nodding, up to 1.6 inches (4 cm), yellowish or greenish brown with a lot of yellow mottling to purplish black with little mottling, or yellow-green mottled with purple. The leaves are in whorls. [图片]How to Grow and Care Unusual and hardy, Fritillaria bulbs produce best when planted in moist soil in a sunny to part shade location in the flower bed. Wildflower Fritillaria lilies are an excellent choice for the gardener who wants an out of the ordinary specimen among more common spring-blooming bulbs. Growing Fritillaria may reach 4 feet (1.2 m) or more in spring. Use wildflower Fritillarias as specimens, in groupings or as an addition to a traditional bulb bed. Be prepared to plant bulbs as soon as they arrive. Plant larger bulbs with the base about 5 inches (12.5 cm) below the soil surface, while smaller Fritillaria bulbs should be planted about 3 inches (7.5 cm) down. Plant bulbs in well-drained soil and keep it moist until the root system is established. Fritillaria bulbs resist deer, squirrels and bulb digging rodents and may help protect other bulbs that are favorites of the critters. Origin Native to western North America.

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2017年09月29日

Scientific Name Ferraria ferrariola (Jacq.) Willd. [图片]Common Names Spider Iris, Starfish Lily Synonyms Moraea ferrariola (basionym), Ferraria angustifolia, Ferraria antherosa, Ferraria longa, Ferraria minor, Ferraria viridiflora Scientific Classification Family: Iridaceae Subfamily: Iridoideae Tribe: Irideae Genus: Ferraria [图片]Flower Color: Greenish-white, or pale greenish-yellow to greenish-blue Bloom Time: Summer to early fall Description Ferraria ferrariola is a very rare flowering plants with greenish-white, or pale greenish-yellow to greenish-blue flowers with the outer segments finely striped with short dark lines. Other distinguishing characteristics are a stem not covered with leaf sheaths and red or purple spotted basal leaf sheaths. It is sweetly scented. Each bloom lasts only a day, but are borne over a two month period. [图片]How to Grow and Care Ferrarias are easy bulbs to grow. These plants prefer to be located in sun or semi-shade in loamy, well-drained soil just beneath the surface (1-2 inches/2.5-5 cm). Plants in too much shade will fail to bloom and will eventually die out. The rarer species are generally best grown in pots or containers. The care of Ferraria corms don’t require too much either. Once their spring flowering has completed, the foliage will slowly begin to fade and the Ferraria flowers go dormant in summer. During this time, all watering should be limited. Bring any container-grown plants indoors for over wintering and provide a generous amount of mulch for winter protection to those growing outdoors. Established Ferraria plants will produce large clumps each year. These can be easily divided in the spring when overcrowding becomes a problem or if additional plants are desired elsewhere in the garden. Origin Native to the western coast of South Africa.

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2017年09月29日

Scientific Name Ferraria crispa Burm. [图片]Common Names Black Flag, Starfish Lily, Sea Spider Iris Synonyms Ferraria obtusifolia, Ferraria undulata Scientific Classification Family: Iridaceae Subfamily: Iridoideae Tribe: Irideae Genus: Ferraria [图片]Flower Color: Brown and pale yellow Bloom Time: Late spring to early summer Description Ferraria crispa is a small perennial, up to 1.5 feet (45 cm) tall, with remarkable, velvety textured flowers that have intricately frilled and crisped margins on their 3 long and 3 short petals. The flowers are also strongly marked and mottled in shades of brown and pale yellow and unfortunately have an unpleasant scent. The flowers are up to 2 inches (5 cm) in diameter, produced in late spring to early summer on 2 to 3 stems per corm, and are only open in fine weather. [图片]How to Grow and Care Ferrarias are easy bulbs to grow. These plants prefer to be located in sun or semi-shade in loamy, well-drained soil just beneath the surface (1-2 inches/2.5-5 cm). Plants in too much shade will fail to bloom and will eventually die out. The rarer species are generally best grown in pots or containers. The care of Ferraria corms don’t require too much either. Once their spring flowering has completed, the foliage will slowly begin to fade and the Ferraria flowers go dormant in summer. During this time, all watering should be limited. Bring any container-grown plants indoors for over wintering and provide a generous amount of mulch for winter protection to those growing outdoors. Established Ferraria plants will produce large clumps each year. These can be easily divided in the spring when overcrowding becomes a problem or if additional plants are desired elsewhere in the garden. Origin Native to South Africa.

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2017年09月29日

Scientific Name Ferocactus glaucescens (DC.) Britton & Rose [图片]Common Names Blue Barrel Cactus, Glaucous Barrel Cactus Synonyms Bisnaga glaucescens, Echinocactus glaucescens, Echinocactus pfeifferi, Ferocactus pfeifferi Scientific Classification Family: Cactaceae Subfamily: Cactoideae Tribe: Cacteae Genus: Ferocactus [图片]Flower Color: Yellow Bloom Time: Late spring and summer Description Ferocactus glaucescens is a generally solitary, barrel cactus with bluish green stems up to 22 inches (55 cm) tall and 20 inches (50 cm) in diameter, 11 to 15 ribs, 0 or 1 central spine, and straight, light yellow 6 or 7 radial spines, up to 1.6 inches (4 cm) long. The flowers are lemon yellow, funnel-shaped and up to 1.6 inches (4 cm) in diameter. The plants start flowering when about 5 inches (12.5 cm) in diameter. The fruits are white, 0.8 inch (2 cm) long with the remnants of the flowers attached. [图片]How to Grow and Care Choose a planting location that receives direct sun during all or most of the day. Water the cactus at the time of planting to anchor it into the soil. Plant your Barrel Cactus in early spring before new roots begin to form in late June and early July. The roots may appear dry, but that is typical before new growth begins. Dig a hole deep enough for the plant’s roots and amend it as needed to provide fast-draining soil. A good soil mixture includes 10 percent native soil, 45 percent washed sand or pumice and 45 percent compost. Ferocactus thrives in poor and arid soil. Water the cactus at the time of planting to anchor it into the soil. Water again only if the weather in your area is unseasonably dry and if normal spring or winter rainfall doesn’t occur. Origin Native to eastern Central Mexico.

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2017年09月29日

Scientific Name Vitis vinifera L. [图片]Common Names Common Grape Vine, Grape Vine, Wine Grape, European Grape Synonyms Cissus vinifera Scientific Classification Family: Vitaceae Genus: Vitis [图片]Flower Color: Yellow, white Bloom Time: Spring Description Vitis vinifera is a liana growing up to 35 yards (32 m) in length, with flaky bark. The leaves are alternate, palmately lobed, up to 8 inches (20 cm) long and broad. The fruit is a berry, known as a grape. In the wild species it is up to 0.25 inch (6 mm) in diameter and ripens dark purple to blackish with a pale wax bloom. In cultivated plants it is usually much larger, up to 1.2 inches (3 cm) long, and can be green, red, or purple (black). There are currently between 5,000 and 10,000 varieties of Vitis vinifera grapes though only a few are of commercial significance for wine and table grape production. [图片]How to Grow and Care Choose a sunny, well-drained position, and at planting time, dig in plenty of organic matter, including a good shovelful of compost. Dig the hole large enough for the roots to spread, and backfill with soil and compost, pressing around the area to get rid of air holes. Water in well and make sure, with a grafted vine, that the graft union is not below the soil – it should be at least 4 inches (10 cm) above the surface. In early spring, fertilize with a complete fertilizer to establish the new vine, and repeat each year in spring and summer. Grapevines are well adapted to growing in dry conditions and a drip-irrigation system will deliver water efficiently and adequately. It is a better method than watering overhead, as this can lead to fungal problems, such as mildew on the leaves and rotting fruit. Regular watering is done from September to January, and then withdrawn after the fruit is harvested. Origin Native to the Mediterranean region, central Europe, and southwestern Asia, from Morocco and Portugal north to southern Germany and east to northern Iran.

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2017年09月29日

Scientific Name Viola tricolor L. [图片]Common Names Heartsease, Heart’s Ease, Heart’s Delight, Tickle-My-Fancy, Jack-Jump-Up-and-Kiss-Me, Come-and-Cuddle-Me, Three Faces in a Hood, Love-in-Idleness, Johnny Jump Up, Pansy, Wild Pansy, European Wild Pansy, Field Pansy, Miniature Pansy Synonyms Viola macedonica, Jacea tricolor, Mnemion tricolor, Viola luteola, Viola nemausensis Scientific Classification Family: Violaceae Subfamily: Violoideae Tribe: Violeae Genus: Viola [图片]Flower Color: Purple, blue, yellow or white Bloom Time: April to September Description Viola tricolor is a small, annual or short lived perennial plant of creeping and ramping habit, up to 6 inches (15 cm) tall. The stems are light green to purplish green, glabrous, and angular. Leaves are simple, lobed or unlobed but not separated into leaflets and medium green in color. The flowers are up to 0.6 inch (1.5 cm) in diameter and different in color: purple, blue, yellow or white. It flowers from April to September. [图片]How to Grow and Care Viola plants prefer cool to warm climates, and wilt a bit in mid-summer heat. In warmer areas, we recommend partial shade. They tolerate a variety of soils. Add a general purpose fertilizer when planting them, then once a month after that. Once your Viola plants are established, they should grow well, even if left unattended. Soil should be moist, but not wet. Water them during dry periods, once or twice per week. Keep them well weeded. Remove spent blooms to promote additional blooms, and extend the blooming period. This will also keep the appearance neat and beautiful. Violas are grown from seeds. They like full to partial sun. Viola can be directly seeded into your flower garden or seeded indoors for transplanting later. For spring blooms, you need to start your Viola in pots and containers indoors six to eight weeks before the last frost. Origin Native to Europe.

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2017年09月29日

Scientific Name Victoria amazonica (Poepp.) J. C. Sowerby [图片]Common Names Santa Cruz Water Lily, Water Platter Synonyms Victoria argentina, Victoria regia var. cruziana Scientific Classification Family: Nymphaeaceae Genus: Victoria [图片]Flower Color: White and pink Bloom Time: Summer Description Victoria cruziana is a giant, water lily with massive, floating mid-green lily pads that can reach up to 8 feet (2.4 m) across and can support the weight of a small adult. Its leaves are reddish purple and softly hairy on the underside. The ephemeral, pineapple-scented blooms appear in summer, lasting only two nights. The flowers are up to 16 inches (40 cm) in diameter, white the first night, turning pink on the second night. 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 In the wild the giant waterlily is a short-lived perennial, but at Kew, Royal Botanic Gardens it is raised as an annual from seed planted each January. In summer the flowers are hand-pollinated and then placed in a bag. This enables easy collection of the resulting seed, in the autumn. The seeds must be kept moist, preferably in water, all the time. To prevent premature germination, or death, they are kept at a constant temperature of 15 °C. In order to begin germination it is sometimes necessary to nick the seed with a scalpel, after which germination occurs in ten days. In January the newly germinated seed is pricked out into a tiny pot which is kept in water. As the plant grows, potting on into larger pots is carried out until the plant occupies a one ton pot. Loam is used as a substrate, the key factors for this choice being that it does not float, it is rich in nutrients and it has the capacity to enclose the fertilizer that is contained in the ‘feed bombs’ given to the plant. Origin Native to South America, primarily Argentina and Paraguay.

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2017年09月29日

Scientific Name Victoria amazonica (Poepp.) J. C. Sowerby [图片]Common Names Amazon Water Lily, Royal Water Lily, Victoria Lily, Giant Water Lily, Jättenäckros (Swedish) Synonyms Euryale amazonica (basionym), Victoria regia, Victoria regina Scientific Classification Family: Nymphaeaceae Genus: Victoria [图片]Flower Color: White and pink Bloom Time: July to August Description Victoria amazonica has very large leaves, up to 9.8 feet (3 m) in diameter, that float on the water’s surface on a submerged stalk, up to 26 feet (8 m) in length. Underside of leaf is coppery red. The flowers are up to 12 inches (30 cm) in diameter, white the first night they are open and become pink the second night. They are up to 15.7 inches (40 cm) in diameter. [图片]How to Grow and Care In the wild the giant waterlily is a short-lived perennial, but at Kew, Royal Botanic Gardens it is raised as an annual from seed planted each January. In summer the flowers are hand-pollinated and then placed in a bag. This enables easy collection of the resulting seed, in the autumn. The seeds must be kept moist, preferably in water, all the time. To prevent premature germination, or death, they are kept at a constant temperature of 15 °C. In order to begin germination it is sometimes necessary to nick the seed with a scalpel, after which germination occurs in ten days. In January the newly germinated seed is pricked out into a tiny pot which is kept in water. As the plant grows, potting on into larger pots is carried out until the plant occupies a one ton pot. Loam is used as a substrate, the key factors for this choice being that it does not float, it is rich in nutrients and it has the capacity to enclose the fertilizer that is contained in the ‘feed bombs’ given to the plant. Origin Native to the shallow waters of the Amazon River basin.

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2017年09月29日

Scientific Name Veronica officinalis L. [图片]Common Names Speedwell, Common Speedwell, Gypsyweed, Common Gypsyweed, Heath Speedwell, Upland Speedwell, Paul’s Betony Synonyms Cardia officinalis, Veronica officinalis var. officinalis, Veronica officinalis f. officinalis Scientific Classification Family: Plantaginaceae Tribe: Veroniceae Genus: Veronica [图片]Flower Color: Whitish blue Bloom Time: May to August Description Veronica officinalis a herbaceous perennial with green, hairy stems, up to 20 inches (50 cm) long, often prostrate, and rooting at joints. The leaves are simple, opposite, obtuse, oblong, narrowed at the base and spiral shaped. Flowers are small and irregular, whitish blue with blue streaks to violet. They crowded on spike-like racemes from axils of leaves. It is in flower from May to August. [图片]How to Grow and Care Speedwell thrives in conditions as wide ranging as full sun to partial shade and in loamy, sandy or clay dense soils. However, it does prefer a sunny location with well draining soil. The soil pH can be as liberal as neutral, alkaline or acidic, with moisture content from average to quite moist. The hardy medium sized plant, with striking 1 to 3 foot (30 to 90 cm) flower spikes, flourishes in USDA hardiness zones 3-8. The Speedwell is tolerant of a variety of conditions but prefers full sun and well drained soil. Speedwell can be sown from seed; however, it is more commonly purchased from a nursery so planting it in the garden can take place right away in spring. Speedwell plant care is relatively low maintenance. In order to facilitate maximum blooming, it is advisable to remove the faded spikes from Speedwell and periodically divide the plant every few years in the early spring or fall. Origin Native to Europe and western Asia.

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2017年09月29日

Scientific Name Vachellia karroo (Hayne) Banfi & Galasso [图片]Common Names Sweet Thorn, Common Acacia, Karoo Thorn Synonyms Acacia karroo (basionym), Acacia capensis, Acacia dekindtiana, Acacia hirtella, Acacia inconflagrabilis, Acacia reticulata, Mimosa reticulata Scientific Classification Family: Fabaceae Subfamily: Mimosoideae Tribe: Acacieae Genus: Vachellia [图片]Flower Color: Yellow Bloom Time: Early summer Description Vachellia karroo is a shrub or small to medium-sized tree which grows up to 40 feet (12 m) tall. It has a rounded crown, branching fairly low down on the trunk. It is variable in shape and size. The bark is red on young branches, darkening and becoming rough with age. Sometimes an attractive reddish color can be seen in the deep bark fissures The leaves are finely textured and dark green. The thorns are paired, grayish to white and are long and straight. On mature trees, the thorns may be quite short. The flowers appear in early summer in a mass of yellow pompons. The seed pods are narrow, flat and crescent shaped. They are green when young becoming brown and dry. [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 southern Africa from southern Angola east to Mozambique, and south to South Africa.

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