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Commonly known as Formosan azalea
EvergreenGreen to yellow-green leaves
RedSalmon to brick red
Medium shrubTypically grow to around 4-6 feet in heightSpreading, open-branched shrub. Produces flowers, to 5cm (2in) across, in clusters of 1-3
Hardy - cold winterHardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
Additional FeaturesGood to knowShallow planting is essential. Can flower sporadically through to autumnPests & DiseasesVine weevils, whiteflies, scale insects, caterpillars, aphids, honey fungus, powdery mildew, bud blast.Place of originTaiwan. Collected by Richard Oldham, Kew, UK., 1864.
Garden Location/ConditionsSuitable for small gardens
(see photos above)
(see photos above)
Pruning groupPruning 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.
RHS group 8
Soil ConditionsAcid / ericaceous lovingIdeally pH 4.5-6.0Fertile moist well-drained soilHumus-richNeutral to acid soil
Toxic - Category CHarmful if eaten(People & Pets)
- 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. 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