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Description of Rhododendron 'Gartendirektor Rieger'

R. 'Gartendirektor Rieger' 
Photo by: Herb Spady

Seed Parent x Pollen Parent: 

Adriaan Koster x williamsianum 

Predominant Flower Color: 

White 

Flower / Truss Description: 

Flower campanulate, 2" - 4" across, white tinged pink with deep purplish-red dorsal spotting. Held in open-topped truss with 4-9 flowers. 

Fragrant: 

No 

Bloom Time: 

Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-10F  (-23C)

Foliage Description / Plant Habit: 

Leaves rounded, slightly recurved, with yellow-green petioles. Upright habit. Likes a fair amount of sun for good blooming but optimal foliage requires filtered sun. 

Elepidote (E) or Lepidote (L): 

Hybridizer: 

Hobbie 

Registration Reference: 

not registered 

 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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