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Description of Rhododendron 'May Day'

R. 'May Day' 
Photo by: Don Wallace

Seed Parent x Pollen Parent: 

haematodes x griersonianum 

Predominant Flower Color: 

Red 

Flower / Truss Description: 

Flower campanulate, 2" across, bright orange-red with faint brown spots, large calyx. Held in a loose truss of about 8 flowers. 

Fragrant: 

No 

Bloom Time: 

Early Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

5F  (-15C)

Foliage Description / Plant Habit: 

Leaves elliptic, up to 4" long, dark matt green with thick tan-colored indumentum. Straggly habit. Grows wider than tall. 

Elepidote (E) or Lepidote (L): 

Hybridizer: 

Williams 

Registration Reference: 

RHS 58 

 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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