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Description of Rhododendron 'Nobleanum Group'

R. 'Nobleanum Group' 
Photo by: Kenneth Cox

Seed Parent x Pollen Parent: 

caucasicum x arboreum 

Predominant Flower Color: 


Flower / Truss Description: 

Flower funnel-shaped to funnel-campanulate, about 2" across, deep red to light pink, bicolored or white, with sparse red spotting. Compact trusses hold 12-20 flowers. Often blooms in December. 



Bloom Time: 

Very Early 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-10F  (-23C)

Foliage Description / Plant Habit: 

Leaves elliptic, oblong or oblanceolate, 5" to 7" long, dull, mid to dark green with thin indumentum. Variable habit. One of the oldest hybrids from about 1835. 

Elepidote (E) or Lepidote (L): 


Waterer, A. 

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
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