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 Unkn Late flower June

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron aberconwayi

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Upright evergreen shrub with distinct saucer-shaped pure white, spotted red. flowers standing boldly..

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Rhododendron aberconwayi Westhaven

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Upright evergreen shrubs with distinct saucer-shaped flowers standing boldly above the foliage in an..

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Rhododendron adenogynum

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Very hardy, dense shrub. Dark green leaves, with a thick woolly tawny indumentum below. White, tinge..

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Rhododendron adenogynum

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Rose or white, tinged rose flowers, sometimes with crimson spots. Leaves are lanceolate and dark gre..

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Rhododendron adenogynum

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Rose or white, tinged rose flowers, sometimes with crimson spots, Leaves are lanceolate and dark gre..

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Rhododendron adenogynum 'Kirsty'

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Pale PinkFlower Colour: Pale pinkFlowering Time: April-May Scented:   No Ultimate Height :  2.00 met..

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Rhododendron adenogynum White form

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White, tinged pink.Flower Colour: White, tinged pinkFlowering Time: April-May Scented:   No Ultimate..

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Rhododendron adenophorum

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  6.00 metres / 19 feet 8 inchesParen..

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Rhododendron adenopodum

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Leaves with grey indumentum, flowers pale pink, funnel shaped.Flower Colour: Pale pinkFlowering Time..

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Rhododendron adenopodum A.M. Form

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Fine foliage plant, dark green leaves with a pale grey indumentum below. Trusses of 6-10 pale rose f..

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Rhododendron adenosum

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Pretty upright species Loose trusses of white tinged pink, a few crimson spots, bell shaped flowers...

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Rhododendron adenosum Kuluense Group

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Pretty upright species . Loose trusses of white tinged pink, a few crimson spots, bell shaped flower..

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Rhododendron aganniphum

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Compact shrub. Matt green leaves, spongy yellow indumentum below, maturing to a deep reddish brown i..

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Rhododendron aganniphum F16472

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Hairy shoots and glandular leaves with white, creamy-white or white tinged pink flowers.Flower Colou..

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Rhododendron aganniphum flavorufum F14345

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Hairy shoots and glandular leaves with white, creamy-white or white tinged pink flowers.Flower Colou..

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Rhododendron aganniphum KW5863

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White/pink flowers .Flower Colour: White, pinkFlowering Time: May-June Scented:   No Ultimate Height..

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Rhododendron aganniphum Rusty

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WhiteFlower Colour: WhiteFlowering Time: April-May Scented:   No Ultimate Height :  0.00 metres / 0 ..

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Rhododendron aganniphum var aganniphum Doshongense Gp KW5863

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Compact, rounded evergreen shrub, with a brown or whitish indumentum on the underside of the leaves...

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Rhododendron aganniphum var. aganniphum

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Leaves with brown indumentum, flowers white tinged pink with crimson spotsFlower Colour: White tinge..

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Rhododendron aganniphum var. flavorufum

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Compact shrub. Matt green leaves, spongy yellow indumentum below, maturing to a deep reddish brown i..

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Rhododendron agapetum

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Crimson scarletFlower Colour: Crimson scarletFlowering Time: May-early June Scented:   No Ultimate H..

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Rhododendron agglutinatum

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Hairy shoots and glandular leaves with white, creamy-white or white tinged pink flowers.Flower Colou..

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Rhododendron albertsenianum

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Scarlet or scarlet-crimson flowers without marking. Indumentum on leaves. Probably form of hybrid of..

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Rhododendron alutaceum var. alutaceum (

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Very rare. Slow growing forming thick gnarled branches, dark green leaves , tawny woolly indumentum ..

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Rhododendron alutaceum var. iodes

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White flushed rose flowers on a fairly compact shrub,eventually becoming a small tree. Wooly, fawn i..

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Rhododendron alutaceum var. russotinctum

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White or white flushed rose with crimson spots , Matt green leaves, glabrescent above with brown or ..

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Rhododendron alutaceum var. russotinctum F.19567

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Dome shaped shrub carrying recurved leaves with a rusty coloured indumentum below. Tight trusses of ..

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Rhododendron alutaceum var. russotinctum R158

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White or white flushed rose with crimson spots. Matt green leaves, glabrescent above with brown or r..

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Rhododendron ambiguum

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Neat upright shrub. produces loose trusses of pale yellow flowers. Hardier and later than Rh lutesce..

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Rhododendron amesiae

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Rarely seen species, often forming a small tree. Dark reddish-purple flowers.Flower Colour: Dark red..

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Rhododendron anhweiense

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White flushed pink .Flower Colour: White, flushed pinkFlowering Time: April-May Scented:   No Ultima..

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Rhododendron annae

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Creamy white.Flower Colour: Creamy white with purple spottingFlowering Time: April-May Scented:..

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Rhododendron annae ssp laxiflorum

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Creamy white.Flower Colour: Creamy whiteFlowering Time: April-May Scented:   No Ultimate Height :  2..

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Rhododendron anthopogan

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Compact habit. Aromatic dark green leaves, reddish brown below. Deep pink flowers. .Flower Colour: F..

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Rhododendron anthopogan L&S1091

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Compact habit. Aromatic dark green leaves, reddish brown below. Deep pink flowers.Flower Colour: Dee..

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Rhododendron anthopogan var hypenanthum

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Dense twiggy shrub, usually wider than high..Aromatic dark green leaves , fawn below.Tight trusses o..

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Rhododendron anthosphaerum

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Tall variety with dark green narrow leaves. Young shoots often maroon. Magenta coloured flowers. Not..

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Rhododendron anthosphaerum

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Tall variety with dark green narrow leaves. Young shoots often maroon. Magenta coloured flowers. Not..

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Rhododendron anthosphaerum Cherry 101 yunnan

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Tall variety with dark green narrow leaves. Young shoots often maroon. Magenta coloured flowers. Not..

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Rhododendron anthosphaerum F21716

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron anthosphaerum F26432

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron anthosphaerum F5848

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Tall variety with dark green narrow leaves. Young shoots often maroon. Magenta coloured flowers. Not..

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Rhododendron anwheiense

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron aperantum

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White fading to shades of rose, orange, red or yellow flowers.Flower Colour: White, fading rose/oran..

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Rhododendron aperantum F.26933

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Dense mound forming species, dark green leaves, bluish green below. Deep crimson flowers,Flower Colo..

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Rhododendron apodectum 24113

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Orange/crimson flowers.Flower Colour: Orange crimsonFlowering Time: May-June Scented:   No Ultimate ..

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Rhododendron araiophyllum

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron arboreum

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Upright, tall single or multi-trunk tree.Flower Colour: Deep crimson, pink ,white, two-toneFlowering..

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Rhododendron arboreum 3856238501

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Tree like shrub in various colours. . Requires acidic soil in a partially shaded site.Flower Colour:..

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Rhododendron arboreum China

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Tree like shrub in various colours. Requires acidic soil in a partially shaded site.Flower Colour: F..

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Rhododendron arboreum form Blood Red

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. Red flowers. Best i..

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Rhododendron arboreum Kuma 689

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. White flowers. Best..

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Rhododendron arboreum KUMA 741

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Forms a gnarled tree, dark green leaves, puckered above,tawny indumentum below. White flowers, Best ..

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Rhododendron arboreum Late Flowering

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Tree like shrub in various colours. Grows to 6ft. Requires acidic soil in a partially shaded site. ..

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Rhododendron arboreum Mid-Pink

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Forms a gnarled tree, dark green leaves, puckered above,tawny indumentum below. Mid Pink flowers. Be..

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Rhododendron arboreum Red

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Forms a gnarled shrub, dark green leaves, puckered above, tawny indumentum below. Red flowers likely..

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Rhododendron arboreum Rubaiyat

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. Red flowers with da..

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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 "tre..

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Rhododendron arboreum Sir Charles Lemon

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron arboreum ssp arboreum

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Large evergreen shrubs or trees, often growing to 100 ft. in the wild, (hence its name, meaning "tre..

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Rhododendron arboreum ssp cinnamomeum

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Magnificent tree like species suitable for woodland gardens. Deep pink flowers, rust coloured indume..

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Rhododendron arboreum ssp cinnamomeum Seedling

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. Red or pink flowers..

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Rhododendron arboreum ssp delavayi

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Chinese or eastern version of R. arboreum. Magnificent tree like species, suitable for woodland gard..

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Rhododendron arboreum ssp delavayi seedlings

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Chinese or eastern version of R. arboreum. Magnificent tree like species, suitable for woodland gard..

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Rhododendron arboreum ssp nigrescens

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron arboreum ssp nilagericum

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Rosy-Crimson. Forms a gnarled shrub, dark green leaves, puckered above. Best in a sheltered site..Fl..

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Rhododendron arboreum ssp roseum

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. Rose pink flowers. ..

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Rhododendron arboreum ssp roseum crispum

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Forms a gnarled shrub, dark green leaves, puckered above, tawny indumentum below. Best in a sheltere..

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Rhododendron arboreum ssp zeylanicum

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Usually forms a gnarled shrub in this country. Dark green leaves, puckered above and covered below w..

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Rhododendron arboreum Tony Schilling

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Magnificent tree like variety, suitable for woodland gardens. Deep pink flowers. (Wakehurst,award wi..

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Rhododendron arboreum TSS

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at WakehurstFlower Colour: Flowering Time: Scented:   No Ultimate Height :  5.00 metres / 16 feet 4..

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Rhododendron arboreum var cinnamomeum album

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. White flowers. Best..

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Rhododendron arboreum var. peramoenum

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Long campanulated, cherry scarlet to deep rose crimson with nector pouches fls.Flower Colour: Cherry..

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Rhododendron arboreum var. roseum

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. Pink flowers. Best ..

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Rhododendron arboreum var. roseum Album

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. White flowers. Best..

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Rhododendron arboreum var. roseum crispum

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. Pink flowers. Best ..

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Rhododendron arboreum var.cinnamomeum album var.cinnamueum album

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. White flowers. Best..

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Rhododendron arboreum White

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. White flowers. Best..

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Rhododendron arboreum Wild Collected seed

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Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. White,pink or red f..

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Rhododendron arboreum x campanulatum

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron argenteum

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron argipeplum

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Unusual species forming a large spreading shrub. Reddish brown mature bark, peeling to reveal a ligh..

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Rhododendron argipeplum syn. smithii

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Tree like species, reddish plum to deep purple peeling bark. Dark green leaves with a white turning ..

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Rhododendron argipeplum syn. smithii intinsum KW8255

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron argyrophyllum ssp argyrophyllum

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Fine tall species, dark green narrow leaves, with a silvery indumentum below. White almost transluce..

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Rhododendron argyrophyllum ssp argyrophyllum K.W.772711

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Fine tall species, dark green narrow leaves, with a silvery indumentum below. White almost transluce..

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Rhododendron argyrophyllum ssp argyrophyllum Pink form

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Fine tall species, dark green narrow leaves, with a silvery indumentum below. pale pink flowers in r..

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Rhododendron argyrophyllum ssp argyrophyllum seedling

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParent..

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Rhododendron argyrophyllum ssp argyrophyllum W1210

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Fine tall species. Dark green narrow leaves covered beneath with a silvery indumentum. White, almost..

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Rhododendron argyrophyllum ssp hypoglaucum

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White flowers flushed with rose and deep red spots.Flower Colour: White flushed rose, deep red spots..

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Rhododendron argyrophyllum ssp hypoglaucum Brodick Castle form

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Attractive hardy tree like species. Dark green narrow leaves with a white indumentum.. Neat little t..

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Rhododendron argyrophyllum ssp nankingense

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Fine tall species. Dark green narrow leaves covered beneath with a silvery indumentum. Pink, almost ..

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Rhododendron argyrophyllum ssp nankingense Chinese Silver AGM

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Fine tall species. Dark green narrow leaves covered beneath with a silvery indumentum. Pink, almost ..

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Rhododendron argyrophyllum ssp omeiense

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Fine tall species. Dark green small narrow leaves covered beneath with a silvery indumentum. White, ..

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Rhododendron arizelum

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Interesting species forming a large flat topped specimen often as wide as high at maturity. Dark gre..

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Rhododendron arizelum Rubicosum Group R59550

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Interesting species forming a large flat topped specimen, often as wide as high at maturity,. Dark g..

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Rhododendron armitii

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Tropical evergreen shrubs with rounded elliptic leaves in pseudowhorls. The flowers are white flushe..

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Rhododendron aucklandii

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Flower Colour: Flowering Time: Scented:   No Ultimate Height :  3.00 metres / 9 feet 10 inchesParen..

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Rhododendron augustinii

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Elegant upright habit,dark green leaves; striking lavender- blue azalea-like flowers. Best in a litt..

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