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Description of Rhododendron 'Grumpy'

R. 'Grumpy' 
Photo by: Paul Wurz

Seed Parent x Pollen Parent: 

degronianum ssp yakushimanum x unnamed hybrid 

Predominant Flower Color: 


Flower / Truss Description: 

Flower funnel-shaped, 2" across, cream tinged pale purplish-pink at edges and with light orange-yellow spotting. Ages to cream color. Lax trusses holds 8-11 flowers. 



Bloom Time: 


Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-5F  (-21C)

Foliage Description / Plant Habit: 

Leaves lanceolate, acute apex, round base, about 3" long, recurved, dull, dark green with orange-brown indumentum. Compact, dense, mounding habit. Very heat and sun tolerant. 

Elepidote (E) or Lepidote (L): 


Waterer, J. 

Registration Reference: 

RHS 71 

 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
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