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More trees and shrubs

Rhododendron—Rhododendron spp.
Family Ericaceae (Heath family)

Plant identification

Flower
Rhododendron flower

Rhododendron spp. are evergreen or deciduous shrubs or small trees. Most are known for colorful flowers.

Optimum conditions for growth

Rhododendrons do best along coastal areas or areas with marine effects. They generally prefer filtered shade and require consistent irrigation and excellent drainage. They are best grown in acid soils rich in organic matter.

Rhododendron shrub
Mature Rhododendron
Pests and disorders of Rhododendron spp.

Invertebrates

Diseases

Diseases (cont.)

Environmental disorders

Weeds

Vertebrates

Statewide IPM Program, Agriculture and Natural Resources, University of California
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