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More Information: Rhododendron calendulaceum


R. 'calendulaceum' 
  Photo: Sally and John Perkins

Predominant Flower Color:  Orange, Red, Yellow

Flower/Truss Description:  Funnel shaped, shades of orange, scarlet and yellow.

Fragrant:  No

Bloom Time:  Late Midseason to Late

Foliage / Habit Description:  Leaves ovate or obovate to elliptic, up to 3½" long, deciduous. Upright spreading shrub or small tree.

Deciduous or Evergreen:   Deciduous

Height:  5 feet in 10 years.

Cold Hardiness Temp:  -20°F  ( -29°C)

Sub Genus:  Pentanthera

Section:  Pentanthera

Sub Section:  Pentanthera

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

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
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Ph: 631-533-0375   E-Mail: member@arsoffice.org
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