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More Information: Rhododendron 'Horizon Dawn'

R. 'Horizon Dawn' 
Photo: Stuart Imrie

Predominant Flower Color:  Yellow

Flower/Truss Description:  Flower openly campanulate, of heavy substance, wavy edges, 3" across, pale yellow with brilliant yellow throat. Held in ball-shaped trusses of 12-14 flowers.


Bloom Time:  Early Midseason

Foliage Description / Plant Habit:  Leaves elliptic to narrowly elliptic, convex, mucronate apex, cuneate base, 6" long, retained 2 years.

Height:  4  feet in 10 years.

Cold Hardiness Temp:  5F  ( -15C)

Parentage  (Seed Parent x Pollen Parent): 
   (Hotei x Tropicana) x [degronianum ssp yakushimanum x (Alice Franklin x Virginia Scott)]

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Brockenbrough

Registration Reference:  ARS 922

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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