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Commonly known as Rose bay
Scented Rhododendrons suitable for conservatory or cool greenhouse are marked with an asterisk.
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".
Dwarf shrubTypically only grows to a maximum of one or two feet in height but there will be some exceptions.
Medium shrubTypically grow to around 4-6 feet in height
Partial shadeMost large-leaved species and hybrids require dappled shade.
Additional FeaturesGood to knowSyn. Azalea. Shallow planting essential. Deadhead carefully where practical to promote vegetative growth.Pests & DiseasesVine weevils, scale insects, powdery mildew, bud blast, honey fungusPlace of originEurope, Asia, Australasia, North AmericaYoutube video
Garden Location/ConditionsGreenhouse / conservatoryNot 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 winterPatio / pot plantsSuitable for small gardensWoodland garden
Scented PlantsScented flowers
Soil ConditionsAcid / ericaceous lovingIdeally pH 4.5-6.0Fertile moist well-drained soilHumus-richNeutral to acid soil
- Dead Heading
- Dead Heading - Video Tip ondemand_video
- Pruning - Video Tip ondemand_video
- Weed Killing
- Pests and Diseases
- Honey Fungus - Video Tip ondemand_video
- Maintenance - fallen tree - Video Tip ondemand_video
- General Pictures
- Further Reading
- Planting out rhodies - Video Tip ondemand_video
- Growing from seed
- Rhododendron Seed Collecting - Video Tip ondemand_video
- Potting on Rhododendron seedlings - 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'
- 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
- Rhododendron ‘Pink Polar Bear’ - Video Tip ondemand_video
- Scented Rhododendrons - Video Tip ondemand_video
- 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
- Lithocarpus Seed Collection - Video Tip ondemand_video
- Rhododendron seed collecting - Video Tip ondemand_video
- Camellia seed collection - Video Tip ondemand_video
- Storing seeds over winter
- Embothrium Collecting and Storing Seeds
- Decaisnea Seed Collection & Potting
Buy Varieties of RHODODENDRON
canary-yellow, bushy habit
Semi-dwarf rhododendron. Dark red
large trusses of white flowers with faint red spotting. Bright cinnamon-brown indumentum. Tree like.
dwarf rhododendron. Soft pink yak. hybrid
Dwarf rhododendron. Compact shrub with hairy leaves and fragrant white flowers
Dwarf rhododendron. Yak. hybrid with rose-pink flowers and brown spots
strong red with darker markings
white flowers flushed pink. Scented
deep orange flowers late in the season
pale amber-orange with spotted throat
Dwarf rhododendron. Tubular, frilled rose-pink flowers with red spots
stunning foliage, pink to red on the back of the leaf and new growth, bronze. Profuse pink flowers and compact habit
salmon, bushy habit
a Caerhays hybrid with tubular bell-shaped yellow flowers. Normally flowers a second time in the autumn
violet paling to white
white flushed mauve
deep purple-violet flowers with greenish speckling in the throat
deep red flowers with a conspicuous dark blotch