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RHODODENDRON
Scented Rhododendrons suitable for conservatory or cool greenhouse are marked with an asterisk.
Syn. Azalea.
Genus of more than 1000 species of evergreen and deciduous trees and shrubs from Europe, Asia, Australasia and North America, particularly southwestern China, Tibet, Burma, northern India and New Guinea.
Evergreen rhododendrons vary greatly in size and usually have bell-shaped flowers with 10 stamens.
Azaleas have smaller, thinner leaves and are generally medium-sized shrubs with smaller, funnel-shaped flowers with, usually, 5 stamens.
The problem rhododendron, vigorous hybrids of R. ponticum, which is colonizing large areas has been given the name R x superponticum and is subject to EU legislation under the "Invasive Alien Species Regulation".
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Evergreensilver-grey leaves 1-3cm (½-1¼in) long
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PurpleShades of purple/mauve/lilac/violetRose purple -
Height40cm (16in) -
Spread40cm (16in)
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Dwarf shrubTypically only grows to a maximum of one or two feet in height but there will be some exceptions.Compact shrub producing solitary or pairs of saucer-shaped flowers 2-4cm (¾-1½in) across with red spotting
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Hardy - very cold winterHardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F) -
Full sunWill tolerate full sun where soils remains moist -
Partial shade
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Burncoose specialitySee Burncoose Speciality group for more details
Good to knowShallow planting is essential.
Pests & DiseasesVine weevil, scale insects, powdery mildew, bud blast, honey fungus
Place of originNortheastern India, Tibet, western China -
Burncoose SpecialitiesRhododendrons
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Core PlantsRhododendron
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Garden Location/ConditionsRockery (inc alpine)Suitable for small gardens
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HardinessFully hardy
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Leaf Colour (if not green)SilverSilver-grey
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Leaf margin
Entire(see photos above) -
Leaf shape
Obovate
(see photos above)
Orbicular(see photos above) -
Pruning group
Pruning group 5Suitable for: Evergreen shrubs that require minimal pruning.
Action: Trim or lightly cut back shoots that spoil symmetry. Deadhead regularly.
When: Annually after flowering.
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Seasonal InterestSpring
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Soil ConditionsAcid / ericaceous lovingIdeally pH 4.5-6.0Fertile moist well-drained soilHumus-richNeutral to acid soil
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Toxic - Category C
Harmful if eaten(People & Pets) -
WildlifeRabbit Resistant
- R. augustinii, edgeworthii x leucaspis, 'Anne Teese', loderi 'King George' - Video Tip ondemand_video
- Rhododendron 'Cilpinense' - Video Tip ondemand_video
- Rhododendron decorum (pink form) - Video Tip ondemand_video
- Rhododendron genestrianum - Video Tip ondemand_video
- Five late flowering rhodies - Video Tip ondemand_video
- R. loderi 'King George' - Video Tip ondemand_video
- R. niveum - Video Tip ondemand_video
- R. 'Ostara' - Video Tip ondemand_video
- Rhododendron ‘Pink Polar Bear’ - Video Tip ondemand_video
- Scented Rhododendrons - Video Tip ondemand_video
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40cm (16in)
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40cm (16in) |
Buy Varieties of RHODODENDRON
RHODODENDRON HYBRIDS
RHODODENDRON 'May Day'
scarlet
RHODODENDRON 'Midnight Beauty'
very dark burgundy-red flower
RHODODENDRON 'Moerheim'
Dwarf rhododendron. Violet flowers. Probably a hybrid of impeditum
RHODODENDRON 'Moser's Maroon'
maroon-red flowers with darker markings inside
Gift-wrapping available
Gift-wrapping available
RHODODENDRON 'Mrs Charles Pearson'
mauve-pink in bud opening pale mauve and eventually turning white
Gift-wrapping available
Gift-wrapping available
RHODODENDRON 'Mrs T.H. Lowinsky'
hardy hybrid with lilac flowers spotted brown-orange
RHODODENDRON 'Nancor'
named by His Excellency the Chinese Ambassador at the 1995 Chelsea Show. Pale yellow flowers in profusion
Gift-wrapping available
RHODODENDRON 'Nancy Evans'
yellow, with the slightest hint of pink.
RHODODENDRON 'Naselle'
pink and cream bicolor.
Gift-wrapping available
RHODODENDRON 'Nova Zembla'
deep red flowers with a conspicuous dark blotch
RHODODENDRON 'Ostara'
deep rose-pink flowers before the leaves emerge
RHODODENDRON 'Patty Bee'
Dwarf rhododendron. A choice dwarf hybrid with lemon-yellow flowers
RHODODENDRON 'Percy Wiseman'
peach-white yak. hybrid
RHODODENDRON 'Pinguin'
light violet flowers with a deep burgundy-red or almost black blotch
Gift-wrapping available
RHODODENDRON 'Polar Bear'
the last rhododendron to flower in mid-late summer with enormous scent and pure white flowers
Useful extras...
