ARS Logo


Description of R. viscosum

Photo by: Hank Helm

Predominant Flower Color: 


 Flower / Truss Description: 

Funnel-shaped with long slender tube, white, occasionally tinged pink, fragrant. 

Bloom Time: 

Very Late 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-20F  (-29C)

Foliage /Habit Description: 

Leaves ovate or obovate to elliptic, up to 3" long, deciduous. Sometimes stoloniferous shrub. 

Deciduous or Evergreen:


Sub Genus: 




Sub Section: 


Geographical Origin: 

E N America (New England to Florida to SE Texas) 

 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.