American Rhododendron Society Web Site ARS
navigation menu background

Rhododendron Plant Search

New Search

  "Printer Friendly" Page

More Information: Rhododendron 'Blue Danube'


R. 'Blue Danube' 
  Photo: Fredo Schroder Nursery

Predominant Flower Color:  Lavender

Flower/Truss Description:  Flower openly funnel-shaped, 3½" across, lavender-blue, darker at edges, with a greenish-yellow blotch. Held in dome-shaped trusses of 20-25 flowers.

Fragrant:  No

Bloom Time:  Late Midseason

Foliage Description / Plant Habit:  Leaves elliptic, acute apex, cuneate base, 3¾" long, dark green. Upright, sprawling plant habit.

Height:  6 feet in 10 years.

Cold Hardiness Temp:  -5°F  ( -21°C)

Parentage  (Seed Parent x Pollen Parent): 
     fortunei ssp discolor x Purple Splendour

Elepidote (E) or Lepidote (L):  E

Hybridized or Selected by:  Waterer, H.

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.


American Rhododendron Society
P.O. Box 43, Craryville, NY 12521
Ph: 631-533-0375   E-Mail: member@arsoffice.org
©1998-2024, ARS, All rights reserved.