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Description of Rhododendron sphaeroblastum

R. sphaeroblastum 
Photo by: Rhododendron Species Foundation (ac64-145)

Predominant Flower Color: 

White 

 Flower / Truss Description: 

Funnel-campanulate, white, sometimes pink, spotted purple. Ball-shaped truss holds 10-20 flowers. 

Fragrant: 

No  

Bloom Time: 

Early Midseason 

Height (ft.) in 10 Yrs: 

Cold Hardiness Temperature: 

-5F (-21C)

Foliage Description: 

Leaves narrowly obovate to elliptic, up to 4" long, upper surface shiny, lower surface with reddish-brown indumentum. 

Elepidote (E) or Lepidote (L): 

 

Plant Habit: 

Compact shrub to upright, straggly small tree 

Sub Genus: 

Hymenanthes 

Section: 

Ponticum 

Sub Section: 

Taliensia 

Geographical Origin: 

China (SW Sichuan, NW Yunnan) 

 Note: Bloom time and 10 year height information are approximate and can vary dependent on local climate and soil conditions.
Hardiness temperature is also an approximate guideline.


American Rhododendron Society
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