动态第508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 Oxalis acetosella L. [图片]Common Names Wood Sorrel, Common Wood Sorrel, Cuckoo Bread, European Wood Sorrel, Irish Shamrock Synonyms Oxalis montana, Acetosella alba, Oxalis acetosella subsp. acetosella, Oxalis alba, Oxalis americana, Oxalis longiflora, Oxalis nemoralis, Oxalis taquetii, Oxalis vulgaris, Oxys acetosella Scientific Classification Family: Oxalidaceae Genus: Oxalis [图片]Flower Color: White with pink streaks Bloom Time: Spring to midsummer Description Oxalis acetosella is a perennial herb, with trifoliate compound leaves. The leaflets are made up by three heart-shaped leaves, folded through the middle, that occur on petioles up to 4 inches (10 cm) long. It flowers from spring to midsummer with small, white (red or violet occur rarely) flowers with pink streaks. During the night or when it rains the flowers close and the leaves fold. [图片]How to Grow and Care Oxalis can be grown indoors as a houseplant or outdoors in the garden. They from the garden center are generally available in the fall or early spring. Oxalis need bright indirect light to grow well and produce flowers. They can often bloom all winter if kept in a sunny spot. Keep the soil of a Oxalis barely moist but never soggy; allow the top 2 inches (5 cm) of soil to dry out before watering. It’s best to water a Oxalis from the bottom so that the thin fragile stems of the plant don’t get water logged and the soil stays loose. Oxalis grow best in cool temperatures between 60ºF to 70ºF (15ºC to 21ºC) during the day and 55ºF to 65ºF (13ºC to 18ºC) at night. The soil for a Oxalis should be loose and sandy rather than rich and organic. Feed a Oxalis monthly in the spring and summer when it is actively growing with a basic houseplant food at ½ the recommended strength. Never feed a Oxalis when it is dormant and the bulbs are resting. Origin Native to Asia and Europe.

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2017年09月29日

Scientific Name Ophrys scolopax Cav. [图片]Common Names Woodcock Bee-orchid, Woodcock Orchid Synonyms Ophrys scolopax subsp. scolopax, Ophrys abchasica, Ophrys apiformis, Ophrys arachnites var. scolopax, Ophrys atropos, Ophrys bremifera, Ophrys bullata, Ophrys ceto, Ophrys corbariensis, Ophrys fuciflora subsp. scolopax, Ophrys gerstlaueri, Ophrys hippocratis, Ophrys holoserica subsp. scolopax, Ophrys hygrophila, Ophrys karadenizensis, Ophrys mycenensis, Ophrys orphanidea, Ophrys santonica, Ophrys schelkownikowii Scientific Classification Family: Orchidaceae Subfamily: Orchidoideae Tribe: Orchidinae Genus: Ophrys [图片]Flower Color: Pink and dark brown Bloom Time: From March to beginning of May Description Ophrys scolopax grows from underground tubers. Leaves typically start to appear above ground in late autumn and are often beginning to yellow by the time the flowers appear, between March and June in their native habitats. The flower spike is very variable in height, usually up to 20 inches (50 cm) tall, but occasionally up to 3 feet (90 cm). The number of flowers is equally variable, with as few as two or as many as 15 or even more. Each flower has the standard structure for the genus. The flowers usually have pink sepals and petals but occasionally specimens with green or white sepals and petals are found. The flower lip is deeply lobed and dark brown. The shape of the speculum is variable but it is generally dark blue bordered with white. Hardiness USDA hardiness zone 8a to 10b: from 10 °F (−12.2 °C) to 40 °F (+4.4 °C). [图片]How to Grow and Care Generally, orchids can be grouped into three temperature categories: cool, warm, and intermediate. Buy a high-low thermometer to measure the temperature range in your orchid location. After that, choosing a suitable orchid is simple. As with light, some orchids easily adapt to more than one temperature range. Most orchids we grow indoors come from the tropics, and most parts of the tropics are much more humid than the average living room. Orchids grow better if you can boost the humidity in their immediate growing area by grouping your plants together, or placing them on a dry well. Create a dry well by placing plastic lattice or pebbles on a tray, then adding water to just below the lattice or top of the pebbles. Place your potted plants on top of the lattice or pebbles. Anyone who has ever watered an orchid knows that most of what you pour in runs out almost immediately through the bottom of the pot. Because orchids are potted in bark mix rather than potting soil, they need to be watered differently. Origin It is found around the Mediterranean and the Middle East, from Morocco and Portugal to Hungary and Iran.

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2017年09月29日

Scientific Name Ophrys apifera Huds. [图片]Common Names Bee Orchid Synonyms Arachnites apiferus, Ophrys albiflora, Ophrys aquisgranensis, Ophrys arachnites, Ophrys asilifera, Ophrys austriaca, Ophrys botteronii, Ophrys chlorantha, Ophrys epeirophora, Ophrys friburgensis, Ophrys holoserica, Ophrys immaculata, Ophrys integra, Ophrys jurana, Ophrys mangini, Ophrys oestrifera, Ophrys purpurea, Ophrys ripaensis, Ophrys rostrata, Ophrys saraepontana, Ophrys scolopax subsp. oestrifera, Ophrys scolopax var. oestrifera, Ophrys trollii, Orchis apifera, Orchis holoserica, Orchis oestrifera Scientific Classification Family: Orchidaceae Subfamily: Orchidoideae Tribe: Orchidinae Genus: Ophrys [图片]Flower Color: Brownish-red with yellow markings Bloom Time: Mid April to July Description Ophrys apifera is a perennial herbaceous plant up to 20 inches (50 cm) tall. This hardy orchid develops small rosettes of leaves in autumn. They continue to grow slowly during winter. Basal leaves are ovate or oblong-lanceolate, upper leaves and bracts are ovate-lanceolate and sheathing. The plant blooms from mid April to July, producing a spike composed from 1 to 12 flowers. The flowers have large sepals, with a central green rib and their color varies from white to pink, while petals are short, pubescent, yellow to greenish. The labellum is trilobed, with two pronounced humps on the hairy lateral lobes, the median lobe is hairy and similar to the abdomen of a bee. It is quite variable in the pattern of coloration, but usually brownish-red with yellow markings. The gynostegium is at right angles, with an elongated apex. [图片]How to Grow and Care Generally, orchids can be grouped into three temperature categories: cool, warm, and intermediate. Buy a high-low thermometer to measure the temperature range in your orchid location. After that, choosing a suitable orchid is simple. As with light, some orchids easily adapt to more than one temperature range. Most orchids we grow indoors come from the tropics, and most parts of the tropics are much more humid than the average living room. Orchids grow better if you can boost the humidity in their immediate growing area by grouping your plants together, or placing them on a dry well. Create a dry well by placing plastic lattice or pebbles on a tray, then adding water to just below the lattice or top of the pebbles. Place your potted plants on top of the lattice or pebbles. Anyone who has ever watered an orchid knows that most of what you pour in runs out almost immediately through the bottom of the pot. Because orchids are potted in bark mix rather than potting soil, they need to be watered differently. Origin It is a widespread across central and southern Europe, as well as North Africa and the Middle East.

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2017年09月29日

Scientific Name Oenothera suffrutescens (Ser.) W. L. Wagner & Hoch [图片]Common Names Scarlet Gaura, Scarlet Beeblossom, Wild Honeysuckle Synonyms Gaura suffrutescens (basionym), Gaura coccinea, Gaura odorata Scientific Classification Family: Onagraceae Subfamily: Onagroideae Tribe: Onagreae Genus: Oenothera [图片]Flower Color: White, pink, red Bloom Time: April to June Description Oenothera suffrutescens is an erect perennial herb growing from a woody base and heavy roots. The stems may reach up to 4 inches (10 cm) tall and they are often covered in small, stiff hairs. The thin to thick clumps of stems are covered in linear to somewhat oval-shaped leaves up to 3 inches (7.5 cm) long. Top stems are spike inflorescences of several flowers each. The flower has four long, stiff sepals which open and fall away from the flower to lie reflexed toward the stem. There are four spoon-shaped petals which are white to yellowish and may turn pink with age. Each flower has eight long stamens with large red, pink, or yellowish anthers arranged around a long stigma. The fruit is a woody capsule, up to 0.4 inches (1 cm) long. [图片]How to Grow and Care Oenothera plants can be propagated by dividing established clumps in the spring or in the fall. Softwood cuttings may be struck in late spring. Easy to grow Oenothera seeds can be sown directly in the garden in late summer, early fall, or planted early in the spring. Just cover the small seeds, and germinate at 65° to 70°F (18° to 21°C). Seeds require darkness to break dormancy. Space plants 5 to 9 inches (13 to 23 cm) apart. Plant in light, well drained soil with a pH of around 5.5 to 7.0. Sandy soil works well for this plant. Oenothera is tolerant of dry and is a good candidate for xeriscaping. In really fertile soil the foliage can be robust, but fewer flowers form. Top dress with fully composted manure in the spring. Provide irrigation during long hot spells, and cut the plants back by a third after flowering to keep them looking neat. Hot summer weather may cause the plants to briefly stop flowering. Powdery mildew sometimes appears in humid conditions. Origin Native to North America.

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2017年09月29日

Scientific Name Oenothera lindheimeri (Engelm. & A. Gray) W. L. Wagner & Hoch [图片]Common Names Lindheimer’s Beeblossom, White Gaura, Pink Gaura, Lindheimer’s Clockweed, Indian Feather Synonyms Gaura lindheimeri (basionym) Scientific Classification Family: Onagraceae Subfamily: Onagroideae Tribe: Onagreae Genus: Oenothera [图片]Flower Color: White, pink Bloom Time: Beginning of spring until the first frost Description Oenothera lindheimeri is a perennial herbaceous plant, up to 5 feet (1.5 m) tall, with densely clustered branched stems growing from an underground rhizome. The leaves are finely hairy, lanceolate, up to 3.5 inches (9 cm) long and up to 0.5 inch (13 mm) wide, with a coarsely toothed margin. The flowers are produced on a up to 2.6 feet (80 cm) long inflorescence, pink or white in color, up to 1.2 inches (3 cm) in diameter, with four petals, up to 0.6 inch (15 mm) long and long hairlike stamens, and are produced from the beginning of spring until the first frost. [图片]How to Grow and Care Oenothera plants can be propagated by dividing established clumps in the spring or in the fall. Softwood cuttings may be struck in late spring. Easy to grow Oenothera seeds can be sown directly in the garden in late summer, early fall, or planted early in the spring. Just cover the small seeds, and germinate at 65° to 70°F (18° to 21°C). Seeds require darkness to break dormancy. Space plants 5 to 9 inches (13 to 23 cm) apart. Plant in light, well drained soil with a pH of around 5.5 to 7.0. Sandy soil works well for this plant. Oenothera is tolerant of dry and is a good candidate for xeriscaping. In really fertile soil the foliage can be robust, but fewer flowers form. Top dress with fully composted manure in the spring. Provide irrigation during long hot spells, and cut the plants back by a third after flowering to keep them looking neat. Hot summer weather may cause the plants to briefly stop flowering. Powdery mildew sometimes appears in humid conditions. Origin Native to southern Louisiana and Texas.

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2017年09月29日

Scientific Name Fuchsia triphylla L. [图片]Synonyms Fuchsia racemosa Scientific Classification Family: Onagraceae Subfamily: Onagroideae Tribe: Circaeeae Genus: Fuchsia [图片]Flower Color: Red-orange or red-purple Bloom Time: Early spring to late autumn Description Fuchsia triphylla is a small shrub up to 3 feet (90 cm) tall. The leaves are simple, elliptical, and quite large. The petiole insertion is whorled and characterized with a red or maroon tint on the underside of the leaves. The flowers are long, tubular and generally red-orange or red-purple in color. They tend to droop over and have stamens that extend from the tip. [图片]How to Grow and Care Fuchsia make excellent houseplants, in part because they are well adapted to growing in shadier conditions. In general, the more heat and light a Fuchsia is subjected to, the more careful you’ll have to be about watering. In some cases, you might be watering every day. To prevent fungal problems and pests, be careful not to let your Fuchsia leaves touch the dirt. Even then, whiteflies can be a problem for Fuchsia and should be treated at the first sign of an infestation (look for white webs on the undersides of leaves). When treating for whitefly, make sure to spray the undersides of leaves thoroughly to disrupt their life cycle. To overwinter your Fuchsia, let the leaves drop off in spring, reduce watering, and move it to a cool and dark room. New growth should appear in the spring. Repot your Fuchsia in the spring annually. These plants require a rich supply of organic material to flower and perform their best, so even if you’re not stepping the plant up to a larger pot, you should repot it into a fresh pot with new soil. Add some controlled-release fertilizer pellets at repotting time to increase vigor. Origin Native to Haiti and the Dominican Republic.

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2017年09月29日

Scientific Name Fuchsia magellanica Lam. [图片]Common Names Hummingbird Fuchsia, Hardy Fuchsia Synonyms Fuchsia gracilis, Fuchsia macrostemma Scientific Classification Family: Onagraceae Subfamily: Onagroideae Tribe: Circaeeae Genus: Fuchsia [图片]Flower Color: Red, pink and sometimes white Bloom Time: Early summer, mid summer, late summer, early fall and mid fall Description Fuchsia magellanica is a deciduous shrub, up to 10 feet (3 m) tall and wide. The plant blossoms profusely over a long period with many small and tubular pendent flowers in shades of red, pink and sometimes white. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. Flowers are followed by reddish purple fruits. [图片]How to Grow and Care Fuchsia make excellent houseplants, in part because they are well adapted to growing in shadier conditions. In general, the more heat and light a Fuchsia is subjected to, the more careful you’ll have to be about watering. In some cases, you might be watering every day. To prevent fungal problems and pests, be careful not to let your Fuchsia leaves touch the dirt. Even then, whiteflies can be a problem for Fuchsia and should be treated at the first sign of an infestation (look for white webs on the undersides of leaves). When treating for whitefly, make sure to spray the undersides of leaves thoroughly to disrupt their life cycle. To overwinter your Fuchsia, let the leaves drop off in spring, reduce watering, and move it to a cool and dark room. New growth should appear in the spring. Repot your Fuchsia in the spring annually. These plants require a rich supply of organic material to flower and perform their best, so even if you’re not stepping the plant up to a larger pot, you should repot it into a fresh pot with new soil. Add some controlled-release fertilizer pellets at repotting time to increase vigor. Origin Native to Argentina and Chile.

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2017年09月29日

Scientific Name Fritillaria meleagris L. [图片]Common Names Snake’s Head, Snake’s Head Fritillary, Chess Flower, Frog Cup, Guinea Hen Flower, Guinea Flower, Leper Lily, Lazarus Bell, Lazarus Bell, Chequered Daffodil, Drooping Tulip, Fritillary Synonyms Fritillaria meleagris subsp. meleagris, Lilium meleagris, Fritillaria pallida, Fritillaria graminifolia, Fritillaria praecox, Fritillaria major, Fritillaria contorta Scientific Classification Family: Liliaceae Subfamily: Lilioideae Tribe: Lilieae Genus: Fritillaria [图片]Flower Color: Chequered purple (sometimes pure white) Bloom Time: March to May Description Fritillaria meleagris is a bulbous perennial to 12 inches (30 cm) tall, with lance-shaped, greyish-green leaves. The flowers are bell-shaped with chequered pattern in shades of purple, or is sometimes pure white. It flowers from March to May and grows up to 16 inches (40 cm) tall. The plant has a button-shaped bulb, up to 0.8 inch (2 cm) in diameter. [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 Europe and western Asia.

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2017年09月29日

Scientific Name Fritillaria imperialis ‘Rubra Maxima’ [图片]Common Names Crown Imperial Synonyms Fritillaria imperialis ‘Rubra’ Scientific Classification Family: Liliaceae Subfamily: Lilioideae Tribe: Lilieae Genus: Fritillaria [图片]Flower Color: Caramelized orange-red Bloom Time: Spring Description Fritillaria imperialis ‘Rubra Maxima’ is a bulbous, herbaceous, perennial plant up to 3.6 feet (1.1 m). It is impressive, colorful garden sculpture with tufts of green pineapple-like leaves on top of the large, hanging, caramelized orange-red, bell-shaped flowers. Blooming occurs in mid to late spring and last for 2 to 3 weeks. Hardiness USDA hardiness zone 5a to 8b: from −20 °F (−28.9 °C) to 20 °F (−6.7 °C). [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 Garden origin.

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2017年09月29日

Scientific Name Fritillaria imperialis L. [图片]Common Names Crown Imperial, Imperial Fritillary, Crown on Crown, Royal Crown Flower, Kaiser’s Crown Synonyms Fritillaria aintabensis, Fritillaria corona-imperialis, Fritillaria imperialis var. imperialis, Imperialis comosa, Imperialis coronata, Imperialis superba, Lilium persicum, Petilium imperiale Scientific Classification Family: Liliaceae Subfamily: Lilioideae Tribe: Lilieae Genus: Fritillaria [图片]Flower Color: Orange-red Bloom Time: Spring Description Fritillaria imperialis is an impressive flowering plant that grows up to 4 feet (1.2 m) tall. Each bulb produces a thick, stout, upright, ramrod-straight flowering stem which rises up to 4 feet (1.2 m) tall. The green stem leaves are lance-shaped, up to 6 inches (15 cm) long, with wavy margins appear in whorls around the lower 1/2 of the stem. Each stem is topped in spring with a crown of orange-red, drooping, bell-shaped flowers topped by a small pineapple-like tuft of leaf-like bracts. Hardiness USDA hardiness zone 5a to 8b: from −20 °F (−28.9 °C) to 20 °F (−6.7 °C). [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 a wide stretch from Turkey and Iraq across the plateau of Iran to Afghanistan, Pakistan and the Himalayan foothills.

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