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More Information: Rhododendron 'Washington State Centennial'


R. 'Washington State Centennial' 
  Photo: Harold Greer

Predominant Flower Color:  Yellow

Flower/Truss Description:  Flower tubular funnel-shaped, very deeply ruffled edges, 3½" across, light orange paling to white, with prominent strong orange-yellow blotch and discontinuous strong pink edge and veins. Ball-shaped truss holds 10-12 flowers.

Fragrant:  Yes

Bloom Time:  Midseason

Foliage Description / Plant Habit:  Leaves elliptic and narrowly obovate, apiculate, cuneate, 3⅞" long, revolute, glossy, moderate yellow-green. Upright, open growth habit.

Deciduous or Evergreen:  Deciduous

Height:  5 feet in 10 years.

Cold Hardiness Temp:  -10°F  ( -23°C)

Parentage  (Seed Parent x Pollen Parent): 
   (occidentale x cumberlandense) x Santiam

Hybridized or Selected by:  Mossman

Registration Reference:  ARS 871

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.


American Rhododendron Society
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Ph: 631-533-0375   E-Mail: member@arsoffice.org
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