western azalea
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R. occidentale is a bushy deciduous shrub, to 3m tall, with glossy mid-green foliage, glaucous beneath, turning orange and yellow in autumn. Fragrant, funnel-shaped flowers, to 10cm in width, are white, sometimes tinged with pink, and blotched yellow within, in early summer
Scientific classification
- Species
- western azalea (Rhododendron occidentale)
- Genus
- Rhododendron
- Family
- Ericaceae
- Harmful if eaten. Wear gloves and other protective equipment when handling
- Toxicity
- Shrubs
- Plant type
- 1.5-2.5 metres
- Height
- 1.5-2.5 metres
- Spread
- Deciduous
- Foliage
- Bushy
- Habit
- Autumn · Spring · Summer
- Season of interest
- Partial shade
- Sunlight
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- Ideal temperature
western azalea pictures
Distribution of western azalea
Distribution map
Western USA
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Culture
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Toxicity
Harmful if eaten. Wear gloves and other protective equipment when handling
Quick identification of western azalea
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western azalea care guide
- Keep acidic root zone evenly moist, never leaving waterlogged soil
- Watering
- Partial shade
- Sunlight
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- Ideal temperature
Watering
Keep acidic root zone evenly moist, never leaving waterlogged soil
Fertilizing
FertilizingEricaceous fertilizer monthly from spring through late summer
Pruning
PruningLittle pruning is needed. Remove diseased, damaged, crowded or crossing shoots and unwanted growth. Timing depends on the plant: generally late winter or early spring; plants prone to bleeding and deciduous magnolias need different timing, and deciduous azaleas and lilacs are pruned after flowering.
Propagation
PropagationPropagate by seed when ripe, or semi-ripe cuttings in late summer, layering in autumn or grafting in late summer or late winter
Growing
GrowingGrow in moist but well-drained, leafy, humus-rich acid soil in part shade with shelter; see rhododendron cultivation
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Common pests and diseases
Diseases
May be susceptible to various Rhododendron diseases including powdery mildews, rhododendron petal blight, rhododendron bud blast, silver leaf and honey fungus
Pests
May be susceptible to vine weevil, rhododendron and azalea whitefly, rhododendron leafhopper, pieris lacebug, scale insects, caterpillars and aphids
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