Species

Species

The species of the genus Rhododendron, which is part of the  Ericaceae family. Depending on the source, there are over 1,000 wild species.
The majority being native to the eastern Himalaya and southeast Tibet, along with the islands of Java, Sumatra, Borneo, New Guinea, and the Philippines. The rest are broadly spread throughout the northern hemisphere in relatively small isolated populations, including Japan, northwestern North America, the Appalachian, and the Caucasus Mountains.
Rhododendron has eight traditionally accepted subgenera which include Azaleastrum; Candidastrum; Hymenanthes;  Mumeazalea; Pentanthera; Rhododendron; Therorhodion; Tsutsusi. The 2 subgenera are generally known as 'Azaleas' are:  Pentanthera, which comprises the deciduous azaleas, and Tsutsusi, which includes evergreen azaleas

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Rhododendron arboreum Seedlings

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Large evergreen shrubs or trees, often growing to 100 ft. in the wild, (hence its name, meaning "tree-like") but rarely over 40 ft. in cultivation. Leaves dark green with white to silver-colored indumentum below. Flowers white / pink / red.Flower Colour: white / pink / red.Flowering Time: March-April Scented:   No Ultimate Height :  6.00 metres / 1..

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Rhododendron augustinii Werrington Form

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Elegant upright habit,dark green leaves; striking lavender- blue azalea-like flowers. Best in a little shade. Superb blue mist-like effect in the woodland, like bluebells but not quite so pure blue.Flower Colour: Lavender blueFlowering Time: April-May Scented:   No Ultimate Height :  3.00 metres / 9 feet 10 inchesParentage : Hardiness : -15 to -18°..

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Rhododendron brachyanthum Leonard Messel

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Dense shrub when grown in full light.Very aromatic dark green leaves, bluish green below. Semi pendulous pale yellow flowers. From NymansFlower Colour: Semi pendulous pale yellowFlowering Time: May-July Scented:   No Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : Hardiness : Colder than -29°C (-20°F), Ironclads. These are the hardiest ..

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Rhododendron ciliatum White form

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Compact shrub if grown in full light.. Attractive light brown peeling bark. Dark green leaves,hairy above and fringed with longer stiff hairs. white flowers. Confused with R Snow Lady.Flower Colour: WhiteFlowering Time: March-May Scented:   No Ultimate Height :  1.00 metres / 3 feet 3 inchesParentage : Hardiness : -15 to -18°C (5°F to 0°F) Hardy in..

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Rhododendron ciliatum, Deep rose form

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Compact shrub if grown in full light.. Attractive light brown peeling bark. Dark green leaves,hairy above and fringed with longer stiff hairs.Deep rose flowers.Flower Colour: Deep roseFlowering Time: March-May Scented:   No Ultimate Height :  1.00 metres / 3 feet 3 inchesParentage : Hardiness : -15 to -18°C (5°F to 0°F) Hardy in all but the coldest..

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Rhododendron decorum(South Lodge seedling)

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Handsome tree like species with matt green leaves up to 15cm long. Scented white flowers often 7.5 x 8.5cm, An excellent vigorous easily grown variety. Worth trying on neutral soils.Flower Colour: White, scentedFlowering Time: late April-May Scented:   Yes Ultimate Height :  6.00 metres / 19 feet 8 inchesParentage : Hardiness : -15 to -18°C (5°F to..

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Rhododendron fastigiatum

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Shoots with dark brown to black scales. Long broadly funnel-shaped, light purple to purplish blueFlower Colour: Light purple to blueFlowering Time: April-May Scented:   No Ultimate Height :  1.00 metres / 3 feet 3 inchesParentage : Hardiness : -23°C (-10°F) Hardy anywhere in the UK and moderate parts of Europe such as Holland, southern Sweden, coas..

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Rhododendron fortunei ssp discolor

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Tree like in habit with long dark green leaves, scented white or pink flowers.Flower Colour: White or pink, scentedFlowering Time: June-July Scented:   Yes Ultimate Height :  5.00 metres / 16 feet 4 inchesParentage : Hardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Species over 2m..

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Rhododendron impeditum

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Broadly funnel-shaped bluish mauve, purplish blue or pinkish purple Matt green leaves with brown scales below.Flower Colour: Bluish mauveFlowering Time: April-May Scented:   No Ultimate Height :  0.25 metres / 0 feet 9 inchesParentage : Hardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Dwarf Species up to 1m..

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Rhododendron johnstoneanum

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Spreading habit, bristly twigs, attractive reddish brown peeling bark. Dark green hairy leaves. Creamy yellow flowers. Needs shelter from cold winds.Flower Colour: Creamy yellowFlowering Time: May Scented:   No Ultimate Height :  3.00 metres / 9 feet 10 inchesParentage : Hardiness : -12 to -15°C (10°F to 5°F) Hardy in a sheltered site in most UK, D..

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Rhododendron neriiflorum ssp neriiflorum

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Popular plant, compact in full light. Neat dark green leaves, reddish brown below. Fleshy bell-shaped crimson flowers. needs good drainage Highly recommended.Flower Colour: CrimsonFlowering Time: April-May Scented:   No Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : Hardiness : -15 to -18°C (5°F to 0°F) Hardy in all but the coldest par..

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Rhododendron ponticum Lancifolium

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Leaves are long and narrow flat, not wavy, small flowers pinkFlower Colour: Orchid pinkFlowering Time: May-June Scented:   No Ultimate Height :  7.00 metres / 22 feet 11 inchesParentage : Hardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Species over 2m..

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Rhododendron racemosum Rock Rose AM AGM

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Upright species. maroon shoots with bright green leaves. Masses of bright pink flowers, some from leaf axils.Flower Colour: PinkFlowering Time: March-May Scented:   No Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : Hardiness : -15 to -18°C (5°F to 0°F) Hardy in all but the coldest parts of UK but need some protection...

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Rhododendron scopulorum

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from £42.00

Upright species, may grow beyond 2m in a mild garden. Prefers a north wall. Mid green narrow leaves, scented white flowers with a gold throat.. Makes a good cold greenhouse plant.Flower Colour: Scented white, gold throatFlowering Time: April-May Scented:   Yes Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : Hardiness : -10°C to -8°C (15..

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Rhododendron searsiae

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Attractive free flowering shrub, dark green leaves, bluish green below. Rose purple flowers.Flower Colour: Rose purpleFlowering Time: April Scented:   No Ultimate Height :  4.00 metres / 13 feet 1 inchesParentage : Hardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Species over 2m..

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Rhododendron trichanthum Honeywood

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Flowers in clusters of 3, widely funnel-shaped, 5-lobed,spectrum violet, outside light cyclamen purple. Upright shrub to 2m., with small, hairy foliage.Flower Colour: Light cyclamen purpleFlowering Time: June-July Scented:   No Ultimate Height :  5.00 metres / 16 feet 4 inchesParentage : Hardiness : -18°C (0°F) Hardy in all but the coldest parts of..

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Rhododendron yakushimanum ssp makinoi

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from £35.00

Neat rounded habit. Dark green narrow leaves with a recurved habit, curving downwards at the tips. Thick tawny indumentum below. New growth in autumn, covered with a fluffy white indumenyum. Soft pink flowers,June.Unsuited to frost pockets.Flower Colour: Soft pinkFlowering Time: June Scented:   No Ultimate Height :  1.50 metres / 4 feet 11 inchesPa..

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