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More Information: Rhododendron 'Peter Koster'

R. 'Peter Koster' 
Photo: Steve Henning

Predominant Flower Color:  Red

Flower/Truss Description:  Flower broadly funnel-shaped, 2" across, rosy crimson, paler at edges, inconspicuously marked dark brown at base of dorsal lobe. Truss has about 16 flowers.

Fragrant:  No

Bloom Time:  Midseason to Late Midseason

Foliage Description / Plant Habit:  Leaves obovate, 3" to 4" long, flat, deep green, with thin brown indumentum below.

Height:  5  feet in 10 years.

Cold Hardiness Temp:  -5F  ( -21C)

Parentage  (Seed Parent x Pollen Parent): 
   George Hardy x Doncaster hybrid

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Koster & Sons

Registration Reference:  RHS 58

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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