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More Information: Rhododendron 'Oratorium'


R. 'Oratorium' 
Photo: Steve Henning

Predominant Flower Color:  Red

Flower/Truss Description:  Flower openly funnel-shaped, wavy edges, 2" to 2" across, dark red and white filaments. Ball-shaped truss has 11-15 flowers.

Fragrant:  No

Bloom Time:  Late Midseason

Foliage Description / Plant Habit:  Leaves elliptic, convex, acute apex, rounded base, 4" to 5" long, glossy, bright green. Dense plant habit.

Height:  3  feet in 10 years.

Cold Hardiness Temp:  -15F  ( -26C)

Parentage  (Seed Parent x Pollen Parent): 
   Feureschein x Thunderstorm

Elepidote (E) or Lepidote (L):  E

Hybridizer:  Hachmann, Hans

Registration Reference:  RHS 88

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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