ARS Logo


Description of Rhododendron 'Courtenay Duke'

R. 'Courtenay Duke' 
Photo by: Harry Wright

Seed Parent x Pollen Parent: 

Madame Guillemont x Gomer Waterer 

Predominant Flower Color: 


Flower / Truss Description: 

Flower inside rose with reddish midribs and a dark red, spotted dorsal blotch, outside dark rose. Held in flat truss of 12-15 flowers. 



Bloom Time: 


Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-10F  (-23C)

Foliage Description / Plant Habit: 

Leaves oblong, broadly acute apex, rounded base, 4" long, slight downward twist, down-curved edges, semi-glossy to dull green. 

Elepidote (E) or Lepidote (L): 



Registration Reference: 

ARS 022 

 Note: Bloom time and 10 year height information are approximate and can vary dependent on local climate and soil conditions.
Hardiness temperature is also an approximate guideline.

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.