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Description of Rhododendron 'Black Widow'

R. 'Black Widow' 
Photo by: Harold Greer

Seed Parent x Pollen Parent: 

(Frank Galsworthy x Leo) x Warlock 

Predominant Flower Color: 


Flower / Truss Description: 

Flower openly funnel-shaped, about 3" across, wavy edges, opens dark grayish purple aging to darker than dark red with a dark speckled eye. Ball-shaped truss holds 19-21 flowers. 



Bloom Time: 


Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-5F  (-21C)

Foliage Description / Plant Habit: 

Leaves elliptic, broadly acute apex, cuneate base, 6" long, glossy, bullate. Upright and spreading habit 

Elepidote (E) or Lepidote (L): 



Registration Reference: 

ARS 072 

 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:
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