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Description of Rhododendron 'Shamrock'

R. 'Shamrock' 
Photo by: Eleanor Philp

Seed Parent x Pollen Parent: 

keiskei, dwarf form x hanceanum 'Nanum group' 

Predominant Flower Color: 


Flower / Truss Description: 

Flower tubular funnel-shaped, 1" across, brilliant yellowish green with slight strong yellow-green spotting. Flowers fade to light yellow. Flat trusses of 8-9 flowers. 



Bloom Time: 

Early to Early Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-5F  (-21C)

Foliage Description / Plant Habit: 

Leaves elliptic, apiculate apex, cuneate base, 1" long, yellowish-green, retained 2 years. Dense and spreading shrub. 

Elepidote (E) or Lepidote (L): 



Registration Reference: 

ARS 784 

 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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