American Rhododendron Society Web Site ARS
navigation menu background

Rhododendron Plant Search

New Search

  "Printer Friendly" Page

More Information: Rhododendron 'Senator Henry Jackson'

R. 'Senator Henry Jackson' 
Photo: Don Smart

Predominant Flower Color:  White

Flower/Truss Description:  Flower white. Held in ball-shaped trusses.

Fragrant:  No

Bloom Time:  Late Midseason

Foliage Description / Plant Habit:  Leaves convex, dark green, with sparse white indumentum.

Height:  3  feet in 10 years.

Cold Hardiness Temp:  -5F  ( -21C)

Parentage  (Seed Parent x Pollen Parent): 
   degronianum ssp yakushimanum x Mrs Horace Fogg

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Larson

Registration Reference:  not registered

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:
1998-2015, ARS, All rights reserved.