Size
Ultimate height
0.5–1 metresTime to ultimate height
5–10 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
AcidColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Pink | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter | Green |
Position
- Full sun
- Partial shade
Aspect
North–facing or West–facing or South–facing or East–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Ericaceae
- Native to the UK
- No
- Foliage
- Evergreen
- Habit
- Bushy
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling
- Genus
Rhododendron can be evergreen or deciduous shrubs or trees, with simple leaves, sometimes with a dense colourful indumentum of hairs on the lower side, and funnel-shaped, bell-shaped or tubular flowers that may be solitary or in short racemes
- Name status
Accepted
- Horticultural Group
- Evergreen azaleas are compact evergreen shrubs with small leaves and terminal racemes of small, funnel-shaped, usually unscented flowers in early summer
How to grow
Cultivation
Grow in moist but well-drained, leafy, humus-rich acid soil, best in part shade with shelter but grows well in full sun if soil remains reliably moist; see rhododendron cultivation
Propagation
Propagate by semi-ripe cuttings in late summer, layering in autumn or grafting in late summer or late winter
Suggested planting locations and garden types
- Cottage and informal garden
- Rock garden
- Low Maintenance
Pruning
Pests
May be susceptible to vine weevil, rhododendron and azalea whitefly, rhododendron leafhopper, pieris lacebug, scale insects, caterpillars and aphids
Diseases
May be susceptible to various Rhododendron diseases including powdery mildews, rhododendron petal blight, rhododendron bud blast, silver leaf and honey fungus
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.