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动态 (3585)
Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Barringtonia asiatica (L.) Kurz
Common Names Fish Poison Tree, Fish Killer Tree, Sea Poison Tree, Mango Pine, Mangobark, Putat, Sea Putat, Asian Barringtonia, Beach Barringtonia Synonyms Agasta asiatica, Agasta indica, Agasta splendida, Barringtonia butonica, Barringtonia levequii, Barringtonia littorea, Barringtonia senequei, Barringtonia speciosa, Butonica speciosa, Huttum speciosum, Mammea asiatica, Michelia asiatica, Mitraria commersonia Scientific Classification Family: Lecythidaceae Genus: Barringtonia
Flower Color: Pinkish-white Bloom Time: Almost all year round Description Barringtonia asiatica is a small to medium-sized tree growing up to 82 feet (25 m) tall. The leaves are narrow obovate, up to 16 inches (40 cm) long and up to 8 inches (20 cm) wide. The fruit is up to 4.2 inches (11 cm) in diameter, where a thick spongy fibrous layer covers the 2 inches (5 cm) in diameter seed. Fruit is known as the Box Fruit, due to distinct square like diagonals jutting out from the cross section of the fruit, given its semi spherical shape form from stem altering to a subpyramidal shape at its base. Its large pinkish-white, pompon flowers give off a sickly sweet smell to attract bats and moths which pollinate the flowers at night.
How to Grow and Care Grows naturally in moderately humid to humid tropical coastal climates, generally in areas with annual lows of 68 to 77 °F (20 to 25 °C), annual highs of 81 to 93 °F (27 to 34 °C), annual rainfall of 1000 to 4000 mm and a dry season of 6 months or less. Sea Poison Tree grows best in a fertile, humid, well-drained soil. Prefers a position in full sun or light shade. Established plants are fairly drought tolerant and very tolerant of saline conditions and salt laden winds. They thrive in the wild where their roots dabbling in the brackish waters of lagoons, inlets, estuaries and seasonally flooded coastal regions. New plants are usually grown from seed. It performs best on free draining sand and loam soils of a slightly acid to alkaline nature, generally with a pH of 6.0 to 8.5 and on sites with full sun exposure. It has good tolerance to salt, wind, tidal flooding and coral derived limestone soils. Origin Native to mangrove habitats on the tropical coasts and islands of the Indian Ocean and western Pacific Ocean from Zanzibar east to Taiwan, the Philippines, Fiji, New Caledonia, Solomon Islands, Tuvalu, the Cook Islands, Wallis and Futuna and French Polynesia.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Barringtonia acutangula (L.) Gaertn.
Common Names Indian Oak, Indian Oak Tree, Small Indian Oak, Indian Putat, Freshwater Mangrove, Itchy Tree, Mango Pine Synonyms Eugenia acutangula (basionym), Barringtonia acutangula subsp. acutangula, Barringtonia rubra, Butonica acutangula, Caryophyllus acutangulus, Huttum acutangulum, Michelia acutangula, Stravadium acutangulum Scientific Classification Family: Lecythidaceae Genus: Barringtonia
Flower Color: Bright red Bloom Time: Spring Description Barringtonia acutangula is an evergreen tree up to 40 feet (12 m) tall. The bark is dark brown and rough, while the leaves are minutely denticulate-crenate and narrowed into the petiole. The flowers are in long pendulous racemes up to 16 inches (40 cm) long, and are fragrant, with bright red stamens. Petals are up to 0.4 inches (1 cm) long. Fruits are bluntly quadrangular or ovoid, up to 1.6 inches (4 cm) long, broadest in the middle, and contain one seed.
How to Grow and Care Grows naturally in moderately humid to humid tropical coastal climates, generally in areas with annual lows of 68 to 77 °F (20 to 25 °C), annual highs of 81 to 93 °F (27 to 34 °C), annual rainfall of 1000 to 4000 mm and a dry season of 6 months or less. Sea Poison Tree grows best in a fertile, humid, well-drained soil. Prefers a position in full sun or light shade. Established plants are fairly drought tolerant and very tolerant of saline conditions and salt laden winds. They thrive in the wild where their roots dabbling in the brackish waters of lagoons, inlets, estuaries and seasonally flooded coastal regions. New plants are usually grown from seed. It performs best on free draining sand and loam soils of a slightly acid to alkaline nature, generally with a pH of 6.0 to 8.5 and on sites with full sun exposure. It has good tolerance to salt, wind, tidal flooding and coral derived limestone soils. Origin Native to coastal wetlands in southern Asia and northern Australasia, from Afghanistan east to the Philippines and Queensland.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Rudbeckia hirta L.
Common Names Black Eyed Susan, Brown Eyed Susan, Brown Betty, Gloriosa Daisy, Golden Jerusalem, Poorland Daisy, Yellow Daisy Synonyms Rudbeckia hirta var. hirta, Rudbeckia hirta f. hirta, Centrocarpha gracilis, Centrocarpha hirta, Coreopsis hirta Scientific Classification Family: Asteraceae Genus: Rudbeckia
Flower Color: Yellow Bloom Time: Late summer and early autumn Description Rudbeckia hirta is an upright annual (sometimes biennial or perennial), up to 39 inches (1 m) tall and up to 18 inches (45 cm) wide. The leaves are alternate, mostly basal, up to 7 inches (17.5 cm) long, covered by coarse hair, with stout branching stems and daisy-like, composite flowers appearing in late summer and early autumn. The flowers are up to 4 inches (10 cm) in diameter, with yellow ray-florets circling conspicuous brown or black, dome-shaped disc-florets.
How to Grow and Care Black Eyed Susan plants are drought resistant, self-seeding and grow in a variety of soils. Growing Black Eyed Susans prefer a neutral soil pH and a full sun to light shade location. Black Eyed Susan care will often include deadheading the spent blooms of the flower. Deadheading encourages more blooms and a sturdier, more compact plant. It also can stop or slow the spread of the Black Eyed Susan flower, as seeds are contained in the blooms. Seeds may be allowed to dry on the stem for reseeding or collected and dried in other ways for replanting in other areas. Seeds do not necessarily grow to the same height as the parent from which they were collected. The Black Eyed Susan flower attracts butterflies, bees and other pollinators to the garden. Deer, rabbits and other wildlife may be drawn to Black Eyed Susans, which they consume or use for shelter. When planted in the garden, plant the Black Eyed Susan flower near Lavender, Rosemary or other repellent plants to keep wildlife at bay. Origin Native to the Eastern and Central United States.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Rudbeckia californica A.Gray
Common Names California Coneflower Synonyms Rudbeckia californica var. californica Scientific Classification Family: Asteraceae Genus: Rudbeckia
Flower Color: Yellow Bloom Time: Summer Description Rudbeckia californica is an erect, perennial herb, growing from a thick rhizome, its stem exceeding 3.3 feet (1 m) in maximum height and sometimes approaching 6.7 feet (2 m). It usually has no branches. Most of the large leaves are basal, with a few alternately arranged along the stem. The leaves can be up to 12 inches (30 cm) long and are lance-shaped to oval, smooth-edged or lobed. The inflorescence is a usually solitary, sunflower-like flower head with a base up to 2.4 inches (6 cm) wide, lined with several ray florets, each of which are up to 2.4 inches (6 cm) long. The yellow ray florets extend outwards and then become reflexed, pointing back along the stem. The disc florets filling the button-shaped to conical to cylindrical center of the head are greenish yellow. The fruits are achenes each up to 0.2 inch (0.5 cm) long, tipped with a pappus of scales. Hardiness USDA hardiness zone 6a to 9b: from −10 °F (−23.3 °C) to 30 °F (−1.1 °C).
How to Grow and Care Black Eyed Susan plants are drought resistant, self-seeding and grow in a variety of soils. Growing Black Eyed Susans prefer a neutral soil pH and a full sun to light shade location. Black Eyed Susan care will often include deadheading the spent blooms of the flower. Deadheading encourages more blooms and a sturdier, more compact plant. It also can stop or slow the spread of the Black Eyed Susan flower, as seeds are contained in the blooms. Seeds may be allowed to dry on the stem for reseeding or collected and dried in other ways for replanting in other areas. Seeds do not necessarily grow to the same height as the parent from which they were collected. The Black Eyed Susan flower attracts butterflies, bees and other pollinators to the garden. Deer, rabbits and other wildlife may be drawn to Black Eyed Susans, which they consume or use for shelter. When planted in the garden, plant the Black Eyed Susan flower near Lavender, Rosemary or other repellent plants to keep wildlife at bay. Origin Native to California, where it grows in the Sierra Nevada, the Klamath Mountains, and northern coastal areas.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Rosa rubiginosa L.
Common Names Sweet Briar, Sweet Briar Rose, Sweet Brier, Eglantine, Eglantine Rose Synonyms Chabertia rubiginosa, Laggeria eglanteria, Rosa x almeriensis, Rosa x braunii, Rosa eglanteria, Rosa floribunda, Rosa moutinii, Rosa rugibinosa, Rosa uliginosa Scientific Classification Family: Rosaceae Subfamily: Rosoideae Genus: Rosa
Flower Color: Pink with a white base Bloom Time: Late spring to mid summer Description Rosa rubiginosa is a dense, deciduous shrub up to 10 feet (3 m) high and across, with the stems bearing numerous hooked prickles. The foliage has a strong apple-like fragrance. The leaves are pinnate, up to 3.6 inches (9 cm) long, with 5 to 9 rounded to oval leaflets with a serrated margin, and numerous glandular hairs. The flowers are up to 1.2 inches (3 cm) in diameter, the 5 petals being pink with a white base, and the numerous stamens yellow. The flowers are produced in clusters of 2 to 7 together, from late spring to mid summer. The fruit is a globose to oblong red hip, up to 0.8 inch (2 cm) diameter. Hardiness USDA hardiness zone 4a to 9b: from −30 °F (−34.4 °C) to 30 °F (−1.1 °C).
How to Grow and Care When growing roses, it’s important to choose a site receiving at least 6 hours of sun each day. Rose bushes must also be located in well-drained, fertile soil. Plant dormant roses in early spring (or fall). Potted plants can be planted any time between spring and fall, but preferably spring. If you’re planting bare root roses, presoak them in water for at least 24 hours prior to placing them in the ground. Both bare root and potted rose bushes need to be planted about 2 feet (60 cm) deep, with the hole large enough to accommodate the roots. Backfill the hole with soil, adding some well-rotted manure in with it and water thoroughly. Then mound up additional soil around the base of the plant. Note that this is not necessary for actively growing roses. Caring for rose bushes is important to their overall health and vigor, especially when it comes to watering. Roses require at least an inch (2.5 cm) of water weekly throughout their growing season, beginning in spring or following spring planting. Origin Native to Europe and western Asia.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Rosa acicularis Lindl.
Common Names Prickly Wild Rose, Prickly Rose, Bristly Rose, Wild Rose, Arctic Rose Synonyms Rosa acicularis subsp. acicularis, Rosa alpina, Rosa baicalensis, Rosa carelica, Rosa cinnamomea var. dahurica, Rosa desertorum, Rosa fauriei, Rosa gmelinii, Rosa korsakoviensis, Rosa lissinensis, Rosa ruprechtiana, Rosa sichotealinensis, Rosa suavis, Rosa taquetii Scientific Classification Family: Rosaceae Subfamily: Rosoideae Genus: Rosa
Flower Color: Pink Bloom Time: May to July Description Rosa acicularis is a deciduous shrub, growing up to 10 feet (3 m) tall. The leaves are pinnate, up to 6 inches (15 cm) long, with three to seven leaflets. The leaflets are ovate, with serrate (toothed) margins. The flowers are pink (rarely white), up to 2 inches (5 cm) in diameter. The hips are red, pear-shaped to ovoid, up to 0.6 inch (1.5 cm) in diameter.
How to Grow and Care When growing roses, it’s important to choose a site receiving at least 6 hours of sun each day. Rose bushes must also be located in well-drained, fertile soil. Plant dormant roses in early spring (or fall). Potted plants can be planted any time between spring and fall, but preferably spring. If you’re planting bare root roses, presoak them in water for at least 24 hours prior to placing them in the ground. Both bare root and potted rose bushes need to be planted about 2 feet (60 cm) deep, with the hole large enough to accommodate the roots. Backfill the hole with soil, adding some well-rotted manure in with it and water thoroughly. Then mound up additional soil around the base of the plant. Note that this is not necessary for actively growing roses. Caring for rose bushes is important to their overall health and vigor, especially when it comes to watering. Roses require at least an inch (2.5 cm) of water weekly throughout their growing season, beginning in spring or following spring planting. Origin Native to northern regions of Asia, Europe, and North America.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Rhododendron ferrugineum L.
Common Names Alpenrose, Snow Rose, Rusty-leaved Alpenrose, Alpine Rose Synonyms Azalea ferruginea, Chamaerhododendron ferrugineum, Plinthocroma ferrugineum Scientific Classification Family: Ericaceae Subfamily: Ericoideae Tribe: Rhodoreae Genus: Rhododendron
Flower Color: Pinkish-red Bloom Time: Summer Description Rhododendron ferrugineum is an evergreen shrub that grows up to 3.3 feet (1 m) tall and produces clusters of pinkish-red, bell-shaped flowers throughout the summer. The undersides of the leaves are covered in rust-brown spots, which give the species its scientific name.
How to Grow and Care Once properly located in the planting bed, water thoroughly and cover with an organic mulch which will break down to supply nutrients as it decomposes. A pine bark covering applied at 2 inches (5 cm) is thought to inhibit fungi that cause root rot. Do not mulch with peat moss, as it is difficult to rewet after it has dried out. Proper mulching will decrease the need for future care. Rhododendron care includes a yearly fertilization which is best applied in fall, following a hard freeze or in early spring. Use a fertilizer for acid loving plants, such as organic cottonseed meal. The organic material you have worked into the soil previously will break down to provided some of the necessary nutrients. Consistently moist soil is needed for proper care, but too much water creates problems for the growing Rhododendron. When leaves curl and twist, this indicates that water is needed immediately. The Rhododendron bush should not be allowed to go through the stress of wilting. Origin It is distributed in the Alps, Pyrenees, Jura and northern Apennines.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Rhododendron arboreum Sm.
Common Names Tree Rhododendron Synonyms Rhododendron arboreum var. arboreum, Rhododendron puniceum, Rhododendron windsorii Scientific Classification Family: Ericaceae Subfamily: Ericoideae Tribe: Rhodoreae Genus: Rhododendron
Flower Color: Red, pink or white Bloom Time: Early and mid spring Description Rhododendron arboreum is the national flower of Nepal, in India it is the state tree of Uttarakhand and state flower of Himachal Pradesh and Nagaland. Its name means “tending to be woody or growing in a tree-like form”. It has been recorded as reaching heights of up to 66 feet (20 m), although more usually it has a height and spread up to 39 feet. This plant holds the Guinness Record for World’s Largest Rhododendron. In early and mid spring, trusses of 15 to 20 bell-shaped flowers, up to 2 inches (5 cm) long and wide are produced in red, pink or white. They have black nectar pouches and black spots inside. Hardiness USDA hardiness zone 7b to 10b: from 5 °F (−15 °C) to 40 °F (+4.4 °C).
How to Grow and Care Once properly located in the planting bed, water thoroughly and cover with an organic mulch which will break down to supply nutrients as it decomposes. A pine bark covering applied at 2 inches (5 cm) is thought to inhibit fungi that cause root rot. Do not mulch with peat moss, as it is difficult to rewet after it has dried out. Proper mulching will decrease the need for future care. Rhododendron care includes a yearly fertilization which is best applied in fall, following a hard freeze or in early spring. Use a fertilizer for acid loving plants, such as organic cottonseed meal. The organic material you have worked into the soil previously will break down to provided some of the necessary nutrients. Consistently moist soil is needed for proper care, but too much water creates problems for the growing Rhododendron. When leaves curl and twist, this indicates that water is needed immediately. The Rhododendron bush should not be allowed to go through the stress of wilting. Origin It is found in Bhutan, China, India, Myanmar, Nepal, Sri Lanka, Pakistan and Thailand.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Ranunculus peltatus Schrank
Common Names Pond Water Crowfoot Synonyms Batrachium dichotomum, Batrachium elongatum, Batrachium floribundum, Batrachium langei, Batrachium peltatum, Batrachium pseudofluitans, Batrachium triphyllos, Batrachium truncatum, Ranunculus capillaceus, Ranunculus carinatus, Ranunculus floribundus, Ranunculus triphyllos Scientific Classification Family: Ranunculaceae Subfamily: Ranunculoideae Tribe: Ranunculeae Genus: Ranunculus
Flower Color: White and yellow Bloom Time: June to September Description Ranunculus peltatus is a herbaceous perennial or sometimes annual plant. It has two different leaf types, broad rounded floating leaves, up to 2 inches (5 cm) in diameter with three to seven shallow lobes, and finely divided thread-like submerged leaves. The flowers are white with a yellow center, up to 0.8 inch (2 cm) in diameter, with five petals.
How to Grow and Care Growing Ranunculus flowers starts with planted roots or tubers. Often called Ranunculus bulbs, tubers are different but have similar structures and purposes to the more common bulb. Plant the bulbs or tubers in fall for a glorious spring display. Growing Ranunculus flowers requires well-drained soil and full sun for best results. Soak the tubers and then plant then with the roots or fingers pointed downward at a depth of 1 to 2 inches (2.5 to 5 cm), depending on the size of the bulbs. It is an easy flower to grow. Care of Ranunculus to ensure yearly displays may require that you pull out the tubers at the end of the season. Allow the foliage to almost completely die back and then dig out the tubers. Lay them in a cool, dry place to evaporate all the moisture from the bulbs. Store the tubers in a dark location until spring and then start them indoors in pots. Replant outside when all danger of frost is passed and the first true leaves are evident. Origin Native to Europe, southwestern Asia and northern Africa.
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Dummer. ゛☀
2017年09月25日
Dummer. ゛☀
Scientific Name Ranunculus acris L.
Common Names Meadow Buttercup, Tall Buttercup, Common Buttercup, Giant Buttercup Synonyms Ranunculus acris var. acris, Ranunculus acris f. acris, Ranunculastrum acre, Ranunculastrum boraeanum, Ranunculastrum nemorivagum, Ranunculastrum vulgatum Scientific Classification Family: Ranunculaceae Subfamily: Ranunculoideae Tribe: Ranunculeae Genus: Ranunculus
Flower Color: Yellow Bloom Time: May to July Description Ranunculus acris is variable in appearance across the world. It is a somewhat hairy plant that has ascending, ungrooved flowing stems bearing glossy yellow flowers up to 1 inch (2.5 cm) across. There are five overlapping petals borne above 5 green sepals that soon turn yellow as the flower matures. It has numerous stamens inserted below the ovary. The leaves are compound, with 3 lobed leaflets. Unlike Ranunculus repens, the terminal leaflet is sessile. As with other members of the genus, the numerous seeds are borne as achenes. Hardiness USDA hardiness zone 4a to 8b: from −30 °F (−34.4 °C) to 20 °F (−6.7 °C).
How to Grow and Care Growing Ranunculus flowers starts with planted roots or tubers. Often called Ranunculus bulbs, tubers are different but have similar structures and purposes to the more common bulb. Plant the bulbs or tubers in fall for a glorious spring display. Growing Ranunculus flowers requires well-drained soil and full sun for best results. Soak the tubers and then plant then with the roots or fingers pointed downward at a depth of 1 to 2 inches (2.5 to 5 cm), depending on the size of the bulbs. It is an easy flower to grow. Care of Ranunculus to ensure yearly displays may require that you pull out the tubers at the end of the season. Allow the foliage to almost completely die back and then dig out the tubers. Lay them in a cool, dry place to evaporate all the moisture from the bulbs. Store the tubers in a dark location until spring and then start them indoors in pots. Replant outside when all danger of frost is passed and the first true leaves are evident. Origin It is one of the more common buttercups across Europe and temperate Eurasia.
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