American Rhododendron Society Web Site ARS
navigation menu background

Rhododendron Plant Search

New Search

  "Printer Friendly" Page

More Information: Rhododendron 'Humboldt Sunrise'


R. 'Humboldt Sunrise' 
  Photo: Harold Greer

Predominant Flower Color:  Yellow

Flower/Truss Description:  Flower openly funnel-shaped, wavy lobes, 3" across, fragrant, pale yellow with vivid yellow blotch in dorsal throat, reverse blushed deep pink on distal half of lobes. Flat-shaped truss holds 5-6 flowers.

Fragrant:  Yes

Bloom Time:  Early Midseason

Foliage Description / Plant Habit:  Leaves elliptic to lanceolate, acute with apiculus apex, cuneate base, curve towards tip, glossy, yellow green, retained for 2 years. Upright, broad growth habit.

Height:  3 feet in 10 years.

Cold Hardiness Temp:  15°F  ( -9°C)

Parentage  (Seed Parent x Pollen Parent):  Else Frye x johnstoneanum

Elepidote (E) or Lepidote (L):  L

Hybridized or Selected by:  Braafladt

Registration Reference:  ARS 791

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
P.O. Box 43, Craryville, NY 12521
Ph: 631-533-0375   E-Mail: member@arsoffice.org
©1998-2024, ARS, All rights reserved.