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More Information: Rhododendron 'Vulcan'


R. 'Vulcan' 
Photo: Hank Helm

Predominant Flower Color:  Red

Flower/Truss Description:  Flower openly funnel-shaped, wavy-edges, vivid red, unmarked. Held in dome-shaped trusses of about 10 flowers. Several different clones sold under this name.

Fragrant:  No

Bloom Time:  Late Midseason

Foliage Description / Plant Habit:  Leaves 4" long, acute apex, cuneate base, dark green. Mounding habit. Afternoon filtered light is preferred.

Height:  5 feet in 10 years.

Cold Hardiness Temp:  -15F  ( -26C)

Parentage  (Seed Parent x Pollen Parent):  Mars x griersonianum

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Waterer, J.

Registration Reference:  RHS 58

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: member@arsoffice.org
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