Hybrid rhododendrons, on the other hand, are plants resulting from the cross-pollination of one species with a different species or hybrid. Rhododendron 'Lady Chamberlain' Rhododendron 'Triumphe de Grande' Rhododendron 'Countess of Haddington' Rhododendron 'Dame Nellie Melba' Rhododendron 'Van Nes Sensation' Good for cold gardens.Flower Colour : Deep pinkFlowering Time : late May-June Scented :   No Ultimate Height :  3.00 metres / 9 feet 10 inchesParentage : griffithianum hybridHardiness : -23°C (-10°F) Hardy anywhere in the UK and moderate parts of Europe such as Holland, southern Sweden, coastal Denmark, favourable parts of Germany etc.Group : Large Hybrids over 2m.. Recent introduction. The end result is a plant that shows little R. fortunei influence, but which clearly states its R. griersonianum background. Some of the original "Wilson's Dozen" plants are no longer easily found and have be replaced by the modern list of "iron-clads": * indicates that it is among the most cold hardy rhododendrons. Compact easily grown hybrid, with bright green aromatic oleaves. Bears delicate pink flowers. Often early into flower and growth.Group : Dwarf Hybrids up to 1m.. It is believed that many of the rhododendrons along its length were part of a Knippenberg hybrid trial area. This is confusing since there is some variation Rhododendrons are the most impressive flowering shrub in the Northeast and the Northwest, while the most stunning flowering shrub of the Southeast, Gulf Coast and Southern California is the evergreen azalea (neither survive well in the central U.S.). Slightly twisted light green leaves. Superb pink flowers, with orange tones. Well-formed trusses of scented white flowers, flushed pink. Deciduous azaleas are popular in both hot and cold climates. This group included: Ten years later he dropped ´H. Compact, rounded bush with pale greenish-yellow flowers with a red basal blotch.Flower Colour : Pale yellow, greenish, basal blotch redFlowering Time : May Scented :   No Ultimate Height :  1.00 metres / 3 feet 3 inchesParentage : wardii x yakushimanumHardiness : Group : Compact & Medium Hybrids up to 2m.. Plant habit is a dense rounded mound of strong, rigid red stems and large lustrous leaves. The flowers are tubular-, funnel-, or bell-shaped—and often fragrant. All rhododendrons and azaleas will grow well in light shade; the Carolina rhododendrons will bloom more abundantly in full sun if the soil is kept moist, but in hot climates or in windy places shade is usually mandatory. [Return to Top]. Matt green leaves with a fawn reverse. Much like auriculatum, flowers medium pink, deeper in throat, trumpet shaped. A final group of hardy large-leaved rhododendrons are the ‘Yak’ hybrids, developed from the species R. yakushimanum. Barely hardy at Exbury. Proper soil preparation is also necessary for the health of this acid loving plant. either naturally or in cultivation, that are not capable of reproducing Flower Colour : Flowering Time :  Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : Hardiness : Group : Compact & Medium Hybrids up to 2m.. So although the influence of the 'Ole Olsen' parentage is not immediately apparent, a look into the background of 'Jingle Bells' soon reveals where the improvements over 'Fabia' came from. A lovely very hardy yakushimanum hybrid that has attractive dark green foliage. Ideal for cold exposed gardens.Flower Colour : Small dark redFlowering Time : May-June Scented :   No Ultimate Height :  1.50 metres / 4 feet 11 inchesParentage : Parsons Grandiflora x red HybridHardiness : Colder than -29°C (-20°F), Ironclads. Rainier Rhododendrons, Washington. Flower Colour : Flowering Time : April Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : Hardiness : Group : Large Hybrids over 2m.. Low growing spreading variety. Rhododendrons and azaleas come in all shapes and sizes from a few inches tall to giant forest trees. Generally they are classified as large-leaved, with foliage 3 inches or more in length, and small-leaved, with foliage under 3 inches. quotation marks and are not italicized. by vegetative propagation. The cold resistance of a hybrid rhododendron is indicated by a code that indicates the lowest temperature the flower buds can tolerate during the winter and still open perfectly in the spring. Often early into flower and growth.Group : Large Hybrids over 2m.. Reddish-purple flowers with deeper blotch. When this happens the … Produces rose-bengal flowers with darker red blotches in trusses of 13-14.Flower Colour : Rose-bengal, blotched dark redFlowering Time : late May Scented :   No Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : parentage unknownHardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Hybrids over 2m.. Often early into flower and growth.Group : Compact & Medium Hybrids up to 2m.. A low growing compact shrub with pale foliage. Specimens vary in size from dwarf plants of 300mm to bushes over 2m tall. Huge satiny white/ pink flowers with chocolate blotch, in early spring. true to their parents from seeds. Family: Ericaceae. In the hardiest (H-1) group, which is hardy to Zone 4, with flower buds that tolerate -25°F in winter, recommended varieties are 'Boule de Neige', white; 'Pink Cameo', pink with yellow blotch; 'Prize', pink with brown blotch; and 'Tony', cherry red (all 2 to 3 feet tall after 10 years); 'America', bright red; 'King Tut', light and deep pink; 'Pinnacle', pink with citron blotch; and 'The General', crimson with dark blotch (all 3 to 5 feet tall); 'Lavender Queen', pale lavender, and 'Spring Dawn', rosy pink with yellow blotch (both 5 or more feet tall). true to the parent from seed. W. Sargent´ and ´Caractacus´ from this list and merely talked about the "Dozen Iron Clads". Most of the rhododendrons and azaleas grown in gardens are hybrids, and their ability to resist cold differs remarkably from one variety to another. [Return to Top]. Bedford', pale mauve with dark blotch, 5 or more feet tall; 'Anna Rose Whitney', deep pink; 'Britannia', crimson; 'Crest', primrose yellow; 'Gomer Waterer', pink buds open white; 'Jean Marie de Montague', bright scarlet; 'Mrs. Huge trusses of Pink flowers with a small rosy blotch at the base, . It produces pale blush pink f owers in March, which are held in loose trusses of 2-3. because it provides valuable clues about the potential results Bold foliage on vigorous plant. confusion with species, such names should not be in Latin. delavayi x agastum x decorum', Rhododendron 'auriculatum hybrid, South Lodge Pink', Rhododendron 'Avalanche var. In fact, it is a good idea to set them about 1 inch higher than they grew at the nursery. the plant. modern language names. Flower Colour : Flowering Time :  Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : Hardiness : Group : large Hybrids over 2m.. Forms a gnarled shrub, dark green leaves, puckered above,tawny indumentum below. It can be perpetuated by vegetative reproduction Opening in batches over a long period. The leaves of the smaller azalea are usually pointed and narrow; the leaves of the rhododendron are generally large and leathery.. Pink, cream and white flowers. Rhododendron Hybrids names starting with: A - page 1. Dec 9, 2016 - Explore Tim B's board "Rhododendron hybrids" on Pinterest. 15 Rhododendron cinnabarinum x Rhododendron cinnabari- Dark green leathery leaves, silvery fawn below. Flowers apricot salmon, shaded pink, with orange eye at centre. true to the original plant naturally and which must be perpetuated A rhododendron like 'Jingle Bells' is a cultivar that was produced Red flowers, flowers.Flower Colour : RedFlowering Time : January-March Scented :   No Ultimate Height :  10.00 metres / 32 feet 9 inchesParentage : arboreum x grande HybridHardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Hybrids over 2m.. White flowersFlower Colour : WhiteFlowering Time : Jan-May Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : Hardiness : -12°C (10°F) Hardy outdoors in milder parts of UK (such as Cornwall, Argyll), southern Ireland.Group : Large Hybrids over 2m.. Lax trusses of 12 mimosa yellow flowers, campanulate.Flower Colour : Mimosa yellowFlowering Time : May Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : Crest x Loderi JulieHardiness : Group : Large Hybrids over 2m.. Fine old hybrid,tree like in habit. 'Regal' with improved foliage, and P.J.M. Pink buds open to white with blotch of oxblood red at the base of the flower, Dark green leaves narrowly oblong, paler beneath,Flower Colour : White, blotch oxblood redFlowering Time : May Scented :   No Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : souliei x Coronation DayHardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Compact & Medium Hybrids up to 2m.. Good in cold gardensFlower Colour : Fluorescent pinkFlowering Time : May Scented :   Yes Ultimate Height :  4.00 metres / 13 feet 1 inchesParentage : griersonianum x Countess of DerbyHardiness : -23°C (-10°F) Hardy anywhere in the UK and moderate parts of Europe such as Holland, southern Sweden, coastal Denmark, favourable parts of Germany etc.Group : Large Hybrids over 2m.. White flowers, flushed solferino purple; striped purple on outside. Flower Colour : Flowering Time :  Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : ponticum x griffithianumHardiness : Group : Large Hybrids over 2m.. Soft, lemon-yellow flowers in full truss. Flower Colour : Flowering Time :  Scented :   Yes Ultimate Height :  2.00 metres / 6 feet 6 inchesParentage : veitchianum Cubittii GroupHardiness : -10°C to -8°C (15°F to 20°F) Greenhouse culture, except the mildest western areas of the UK.Group : Compact & Medium Hybrids up to 2m.. Pictures, photos and information about rhododendrons hybrids. Recommended varieties in the H-2 category, hardy to Zone 5, with flower buds that tolerate -15°F in winter, are 'Blue Diamond', lavender blue; 'Conestoga', pink; 'Conewago', rose magenta; 'Laetevirens', also known as Wilson rhododendron, rose pink; 'Purple Gem', deep purple; 'Ramapo', lavender purple; and 'Wyanokie', white. Iron-clads are by definition plants that have been popular for a long time and are easy to grow, even in cold climates. Tall tree-like open habit, requires a sheltered and shaded site.Flower Colour : Blush pink-whiteFlowering Time : late May Scented :   Yes Ultimate Height :  3.00 metres / 9 feet 10 inchesParentage : fortunei ssp discolor x griffithianumHardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Hybrids over 2m.. Hardy Hybrid Rhododendron Cunningham’s White. Low growing shrub.Flower Colour : Pink, cream and whiteFlowering Time : May-June Scented :   No Ultimate Height :  0.60 metres / 1 feet 11 inchesParentage : fortunei x unnamed hybridHardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Dwarf Hybrids up to 1m.. light orange flowers in a perfect trussFlower Colour : light orangeFlowering Time : May Scented :   No Ultimate Height :  0.00 metres / 0 feet 0 inchesParentage : Hotei x BrandtsTropicanaHardiness : Group : Compact & Medium Hybrids up to 2m.. A compact variety with a fantastic strong apricot colour or orange-pink flowers edged with a slightly more edged bordersFlower Colour : Orange pinkFlowering Time : May Scented :   No Ultimate Height :  1.20 metres / 3 feet 11 inchesParentage : (dichroanthum x neriiflorum) x Fabia x JaliscoHardiness : -23°C (-10°F) Hardy anywhere in the UK and moderate parts of Europe such as Holland, southern Sweden, coastal Denmark, favourable parts of Germany etc.Group : Compact & Medium Hybrids up to 2m.. ApricotFlower Colour : ApricotFlowering Time : May-June Scented :   No Ultimate Height :  3.00 metres / 9 feet 10 inchesParentage : Hardiness : -18°C (0°F) Hardy in all but the coldest parts of UK.Group : Large Hybrids over 2m.. Recommended in the H-2 group, which is hardy to Zone 5, with flower buds that tolerate -15°F in winter, are 'Cheer', shell pink, and 'Spring Glory', light pink with crimson blotch (both 2 to 3 feet tall); 'Blue Peter', violet with dark blotch, and 'Rocket', coral pink with scarlet blotch (both 3 to 5 feet tall), and 'Belle Heller', white with golden blotch (5 or more feet tall). In the north, grow in plenty of light away from drips from trees. Hybrids are called varieties and identified by cultivar, hybrid [Return to Top]. For this reason it is best to purchase rhododendrons and azaleas from a local nurseryman who grows his own plants in open fields. The hybrid rhododendrons are immensely varied in color, size, shape and winter hardiness as a result of their complex genetic background. Much hybridization has resulted in a great number of hybrid cultivars. The varieties with larger leaves usually have larger flowers, 5 inches or more across, composed of blossoms 2 inches or more in diameter. Often early into flower and growth.Group : Compact & Medium Hybrids up to 2m.. Seedling grown from Avalanche which has huge trusses of white or pink flowers with a small rosy blotch at the base, . Rhododendron griffithianum , R. camplyocarpum and now R. fortunei served for the next fifty years to bring size and quality that was to set the style and elitist standard for what a garden hybrid rhododendron should look like. A rhododendron species can be uniquely identified with the genus and species. Atrosanguineum, a bright red with purple markings R. Charles Dickens, a crimson red with purplish markings R. Everestianum, a frilled purplish-pink with green markings R. Lady Armstrong, a deep purplish pink with red markings and pale center, R. Purpureum Grandiflorum, a violet with green flecks R. 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