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More Information: Rhododendron 'Red Jack'


R. 'Red Jack' 
  Photo: Fredo Schroder Nursery

Predominant Flower Color:  Red

Flower/Truss Description:  Flower funnel-shaped, 1½" to 2⅜" across, strong to vivid red, unmarked. Truss has 15 to 18 flowers.

Fragrant:  No

Bloom Time:  Midseason

Foliage Description / Plant Habit:  Leaves ovate, 4" to 4¾" long, light green.

Height:  7 feet in 10 years.

Cold Hardiness Temp:  -5°F  ( -20°C)

Parentage  (Seed Parent x Pollen Parent): 
     Wilgen's Ruby x May Day Group

Elepidote (E) or Lepidote (L):  E

Hybridized or Selected by:  Boskoop

Registration Reference:  RHS 88

Glossary of plant description terminology.
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.


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P.O. Box 43, Craryville, NY 12521
Ph: 631-533-0375   E-Mail: member@arsoffice.org
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