No common name (R. auriculatum)
Rhododendron auriculatum
Ericaceae · broadleaf evergreen tree · introduced
Last updated
An evergreen tree species native to eastern Sichuan, western Hubei, and eastern Guizhou in China, ranging from 6 to 30 feet. Large fragrant funnel-shaped flowers up to 4 inches long, white to occasionally rosy pink with a greenish blotch at the base. One of the latest-blooming rhododendron species, flowering in mid to late summer.
The late bloom period (July to August) extends the rhododendron season well past the main spring display. Fragrant flowers are a bonus on a plant this large. Variable mature size; can become a substantial specimen tree in favorable conditions. Acidic, well-drained soil. Twenty-one diseases and 15 pests documented at the genus level. All parts contain grayanotoxins and are toxic if ingested.
Quick Facts
Root Colonization (Spring–Fall)
Gall Development & Sporulation
Flower Infection & Sporulation
Aecial Stage (Alternate Host)
+ 13 more — see full disease and pest lists below