Rhododendron 'Mrs Helen Koster'

 
Photo: Harold Greer

Predominant Flower Color: 

 White 

Flower / Truss Description: 

 Flower star shaped, pale lilac white, with a large purplish red blotch. 

Fragrant: 

 No 

Bloom Time: 

 Late Midseason 

Foliage Description / Plant Habit: 

 Leaves narrowly elliptic, acute apex, convex, deep green. 

Height in 10 Yrs: 

 5 ft 

Cold Hardiness Temperature: 

 -5°F  (-21°C)

Parentage  (Seed Parent x Pollen Parent): 

 Mrs J.J. Crosfield x Catawbiense Grandiflorum  

Elepidote (E) or Lepidote (L): 

 E 

Hybridized or Selected by: 

 Koster & Sons 

Registration Reference: 

 RHS 58 

Note: Bloom time and 10 year height information are approximate and can vary dependent on weather and growing conditions.
Cold hardiness temperature is also an approximate value.

 

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