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More Information: Rhododendron 'Sunny Day'

R. 'Sunny Day' 
  Photo: Joan Steele

Predominant Flower Color:  Yellow

Flower/Truss Description:  Flower openly funnel-shaped, wavy, somewhat reflexed lobes, 3" across, light greenish-yellow with moderate red rays deep in dorsal throat. Ball to dome-shaped truss holds 12 flowers

Fragrant:  No

Bloom Time:  Early Midseason

Foliage Description / Plant Habit:  Leaves between elliptic and narrowly elliptic, apiculate apex, cuneate to rounded base, 3" to 4" long, convex, moderate olive green, retained 2 years.

Height:  4 feet in 10 years.

Cold Hardiness Temp:  0F  ( -18C)

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

Elepidote (E) or Lepidote (L):  E

Hybridized or Selected by:  Whitney

Registration Reference:  ARS 853

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
P.O. Box 214, Great River, NY 11739
Ph: 631-533-0375   Fax: 866-883-8019   E-Mail:
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