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More Information: Rhododendron 'Grandma's Hat'

R. 'Grandma's Hat' 
Photo: Bill Stipe

Predominant Flower Color:  Purple

Flower/Truss Description:  Flower openly funnel-shaped, wavy edges, 4" across, greenish white with deep purplish-red edges and dark red blotch and spots, reverse deep purplish-red. Held in ball-shaped truss with 18-20 flowers.


Bloom Time:  Late Midseason

Foliage Description / Plant Habit:  Leaves oblanceolate to lanceolate, acute apex, cuneate base, 5" long, flat, dull, dark yellowish-green. Upright, well-branched plant.

Height:  5  feet in 10 years.

Cold Hardiness Temp:  0F  ( -18C)

Parentage  (Seed Parent x Pollen Parent):  unknown x unknown

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Lem?

Registration Reference:  ARS 873

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.

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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