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Description of Rhododendron 'C.I.S'

R. 'C.I.S' 
Photo by: Herb Spady

Seed Parent x Pollen Parent: 

Loder's White x Fabia Group 

Predominant Flower Color: 


Flower / Truss Description: 

Flower openly funnel-shaped, wavy-edges, 2" across, pale yellow fading to white at edges, flushed deep pink, vivid red throat, large red calyces. Ball-shaped truss holds 9-11 flowers. 



Bloom Time: 

Midseason to Late Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

5F  (-15C)

Foliage Description / Plant Habit: 

Leaves 4" to 5" long, twisted, dull, dark green . Leaves prone to spotting and easily burned. Upright and sparse-branched habit. 

Elepidote (E) or Lepidote (L): 



Registration Reference: 

RHS 58 

 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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