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More Information: Rhododendron calendulaceum

R. 'calendulaceum' 
Photo by: Sally and John Perkins

Predominant Flower Color:  Orange, Red, Yellow

Flower/Truss Description:  Funnel shaped, shades of orange, scarlet and yellow. Sometimes slightly scented. Inflorescence 5-9 flowered.

Fragrant:  Yes sometimes

Bloom Time:  Late Midseason to Late

Foliage Description:  Leaves ovate or obovate to elliptic, up to 3" long, deciduous.

Plant Habit:  Upright spreading shrub or small tree

Height:  5  feet in 10 years.

Cold Hardiness Temp:  -20F  ( -29C)

Elepidote (E) or Lepidote (L):  E

Sub Genus:  Pentanthera

Section:  Pentanthera

Sub Section:  Pentanthera

Geographical Origin:  E N America (Pennsylvania to N Georgia)

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
Executive Director: P.O. Box 525, Niagara Falls, NY 14304
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