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More Information: Rhododendron 'Joseph Whitworth'


R. 'Joseph Whitworth' 
  Photo: Odo Tschetsch
Deutsche Genbank Rhododendron

Predominant Flower Color:  Purple

Flower/Truss Description:  Flower broadly funnel-shaped, 3⅓" - 3⅔" across, maroon with darker spotting on all lobes. Ball shaped truss has 12-16 flowers.

Fragrant:  No

Bloom Time:  Late Midseason to Late

Foliage Description / Plant Habit:  Leaves elliptic to oblong-obovate, 4" - 4¾" long, dull, dark green. Dense, well-branched plant habit.

Height:  6 feet in 10 years.

Cold Hardiness Temp:  -5°F  ( -21°C)

Parentage  (Seed Parent x Pollen Parent):  ponticum x unknown

Elepidote (E) or Lepidote (L):  E

Hybridized or Selected by:  Waterer, J.

Registration Reference:  RHS 58

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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