ARS Logo


Description of Rhododendron 'Marble Arch'

R. 'Marble Arch' 
Photo by: Richard Gustafson

Seed Parent x Pollen Parent: 

(smirnowii x Avalanche Group) x Spellbinder 

Predominant Flower Color: 


Flower / Truss Description: 

Flower funnel-shaped, ruffled, 2" across, scented, pale purplish-pink fading to white, dark purple blotch in throat. Held in ball-shaped trusses with 13 flowers. 



Bloom Time: 


Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-10F  (-23C)

Foliage Description / Plant Habit: 

Leaves oblong, obtuse apex, rounded base, 5" long, glossy, dark yellowish-green leaves, retained 2 years. 

Elepidote (E) or Lepidote (L): 



Registration Reference: 

ARS 983 

 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.