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More Information: Rhododendron 'Hardgrove's Royal Star'

R. 'Hardgrove's Royal Star' 
Photo: Richard Gustafson

Predominant Flower Color:  Red

Flower/Truss Description:  Flower openly funnel-shaped, wavy edges, 2" to 2" across, inside moderate purplish-red with dark purple blotch, outside deep purplish red. Dome-shaped truss holds 16 flowers.

Fragrant:  No

Bloom Time:  Late

Foliage Description / Plant Habit:  Leaves elliptic, slightly recurved, broadly acute apex, rounded base, 3" to 4" long, semi-glossy, dark yellowish-green, retained 2 years. Plant upright, well branched, somewhat open habit.

Height:  6 feet in 10 years.

Cold Hardiness Temp:  -15F  ( -26C)

Parentage  (Seed Parent x Pollen Parent): 
   Moser's Maroon x unknown

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Hardgrove

Registration Reference:  ARS 982

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 214, Great River, NY 11739
Ph: 631-533-0375   Fax: 866-883-8019   E-Mail:
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