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Description of Rhododendron 'Mary Guthlein'

R. 'Mary Guthlein' 
Photo by: Henk Borsje

Seed Parent x Pollen Parent: 

(Scintillation x Inamorata) x [fortunei x (wardii x dichroanthum)] 

Predominant Flower Color: 

Yellow 

Flower / Truss Description: 

Flower broadly funnel-shaped, wavy edges, 3" across, lightly scented, pale orange-yellow, unmarked. Flat trusses of 7-9 flowers. 

Fragrant: 

Yes slightly 

Bloom Time: 

Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

0F  (-18C)

Foliage Description / Plant Habit: 

Leaves elliptic to oblong, broadly acute apex, rounded base, 4" long, dull, moderate yellowish-green, retained 2 years. Shrub has upright freely branching, vigorous habit. 

Elepidote (E) or Lepidote (L): 

Hybridizer: 

Murcott 

Registration Reference: 

ARS 974 

 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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