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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.

Fragrant:  No

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:  5°F  ( -15°C)

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

Hybridized or Selected by:  Brockenbrough

Registration Reference:  ARS 922

Glossary of plant description terminology.
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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