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Description of Rhododendron 'Horizon Monarch'

R. 'Horizon Monarch' 
Photo by: Ned Brockenbrough

Seed Parent x Pollen Parent: 

Nancy Evans x Point Defiance 

Predominant Flower Color: 

Yellow 

Flower / Truss Description: 

Flower openly funnel-shaped, 4" across, pale greenish-yellow to light yellow with a small, vivid red flare. Ball-shaped truss holds 15 flowers. 

Fragrant: 

No 

Bloom Time: 

Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

5F  (-15C)

Foliage Description / Plant Habit: 

Leaves elliptic, apiculate apex, cuneate base, 6" long, convex, dark green. Spreading growth habit. 

Elepidote (E) or Lepidote (L): 

Hybridizer: 

Brockenbrough 

Registration Reference: 

ARS 902 

 Note: Bloom time and 10 year height information are approximate and can vary dependent on local climate and soil conditions.
Hardiness temperature is also an approximate guideline.


American Rhododendron Society
Executive Director: P.O. Box 525,  Niagara Falls, NY 14304
Ph: 416-424-1942   Fax: 905-262-1999   E-Mail: lauragrant@arsoffice.org
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