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More Information: Rhododendron sidereum

R. 'sidereum' 
Photo by: Rhododendron Species Foundation

Predominant Flower Color:  White, Yellow

Flower/Truss Description:  Oblique-campanulate, cream to yellow, with red basal blotch. Truss of 12-20 flowers.

Fragrant:  No

Bloom Time:  Midseason to Late Midseason

Foliage Description:  Leaves narrowly elliptic to oblanceolate, up to 9" long, plastered silvery-white to fawn indumentum.

Plant Habit:  Erect to rounded shrub or small tree

Height:  5  feet in 10 years.

Cold Hardiness Temp:  10F  ( -12C)

Elepidote (E) or Lepidote (L):  E

Sub Genus:  Hymenanthes

Section:  Ponticum

Sub Section:  Grandia

Geographical Origin:  NE Burma, China (N and W Yunnan)

Note: Bloom time and 10 year height information are approximate and can vary dependent on weather and growing conditions.
Cold hardiness temperature is also an approximate value.

American Rhododendron Society
Executive Director: P.O. Box 525, Niagara Falls, NY 14304
Ph: 416-424-1942   Fax: 905-262-1999   E-Mail:
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