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RHODODENDRON
Commonly known as Rose bay
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".
Further Reading....
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Deciduous
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Evergreen
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Full sun -
Partial shade - most large-leaved species and hybrids require dappled shade. -
Additional Features - Good to know - - syn. Azalea. Shallow planting essential. Deadhead carefully where practical to promote vegetative growth. -
Pests & Diseases - vine weevils, scale insects, powdery mildew, bud blast, honey fungus -
Place of origin - Europe, Asia, Australasia, North America -
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Garden Location/Conditions - Greenhouse / conservatory - Not the sort of plants to be grown outside where there are likely to be frosts. These plants need to be grown in a conservatory or cool greenhouse or at least brought inside for the winter
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Soil Conditions - Fertile moist well-drained soil - - humus-rich
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Neutral to acid soil - ideally pH 4.5 - 5.5
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Wildlife - Rabbit Resistant -
Cold weather damage to evergreen plants
Rhododendron - Care Guide
- Dead Heading
- Dead Heading - Video Tip ondemand_video
- Pruning
- Pruning - Video Tip ondemand_video
- Weed Killing
- Pests and Diseases
- Honey Fungus - Video Tip ondemand_video
- Further Reading
- Rhododendron genestrianum - Video Tip ondemand_video
- Scented Rhododendrons - Video Tip ondemand_video
- Planting out rhodies - Video Tip ondemand_video
- Five late flowering rhodies - Video Tip ondemand_video
- Rhododendron decorum (pink form) - Video Tip ondemand_video
- Rhododendron ‘Pink Polar Bear’ - Video Tip ondemand_video
Rhododendron - Propagation
- Growing from seed
- Rhododendron Seed Collecting - Video Tip ondemand_video
- Propagation by taking semi-ripe cuttings - Video Tip ondemand_video
- Growing from cuttings
- Propagation by layering - Video Tip ondemand_video
- Propagation by other means
- Making a hybrid - Video Tip ondemand_video
- Making a hairy or scaly cross - Video Tip ondemand_video
- Caerhays bred 'Red Centurian'
Shrubs and Trees - Seeds - 1) Collecting Seeds
- When is the right time to collect seeds?
- When are seeds actually ripe and ready for collection?
- Magnolia seed collection - Video Tip ondemand_video
- Cornus capitata seed collection - Video Tip ondemand_video
- Rhododendron seed collecting - Video Tip ondemand_video
Shrubs and Trees - Seeds - 2) Storing Seeds
Shrubs and Trees - Seeds - 3) Planting Seeds
Buy Varieties of RHODODENDRON
RHODODENDRON sinogrande >
The largest leafed rhododendron of all with huge trusses of yellow fading to creamy-white flower with a crimson blush
RHODODENDRON wardii >
Flowers clear yellow, sometimes with a crimson basal blotch, saucer-shaped, in loose trusses
RHODODENDRON 'Cornish Red' >
The tallest growing of all the Cornish woodland rhododendrons. Can reach 60-80 feet in maturity with large trusses of reddish-purple flowers
RHODODENDRON 'Crest' (Hawk Group) >
Bell-shaped primrose-yellow flowers from orange buds. Reddish-purple new growth
RHODODENDRON 'Doc' >
A yakushimanum hybrid with a compact habit and rose-pink flowers fading to creamy-white
RHODODENDRON 'Dreamland' >
Semi-dwarf rhododendron. Yak. hybrid with light pink flowers in profusion on a neat shaped plant
RHODODENDRON 'Elizabeth' >
Bright scarlet, one of the best and most reliable rhododendrons for the smaller garden
RHODODENDRON 'Fragrantissimum' >
Probably the most highly scented rhododendron, large white flowers tinged pink. Our choice as the best rhododendron for the conservatory or cool greenhouse
RHODODENDRON 'Germania' >
Small growing with dark green leaves and upright trusses of deep pink flowers
