Western Azalea
Rhododendron occidentale
Ericaceae · broadleaf deciduous shrub · introduced
Last updated
A deciduous azalea native west of the Rocky Mountains, reaching 10 feet. Flowers are white, orange-pink, or red in bud, opening to white or salmon pink, usually with stripes and a faint yellow blotch, fragrant. The only azalea species native to the western United States.
Fragrant flowers and native status make this an ecologically significant species for Pacific Coast gardens and restoration plantings. An important parent in western deciduous azalea breeding. Acidic, well-drained soil. Twenty-one diseases and 15 pests documented at the genus level. All parts contain grayanotoxins and are toxic if ingested.
Plant Profile
Size & Form
Ornamental Interest
Root Colonization (Spring–Fall)
Gall Development & Sporulation
Active Conidial Spread
Uredinial Stage (Summer)
+ 13 more — see full disease and pest lists below