Rhododendron 'Humboldt'

 
Photo: Diane Weissman

Predominant Flower Color: 

 Lavender 

Flower / Truss Description: 

 Flower 2" to 3" across, very pale purple with blackish-red markings. Held in ball-shaped truss with 16-20 flowers. 

Fragrant: 

 No 

Bloom Time: 

 Late Midseason 

Foliage Description / Plant Habit: 

 Leaves ovate, 4" to 6" long, dark green. Upright, well-branched plant. 

Height in 10 Yrs: 

 5 ft 

Cold Hardiness Temperature: 

 -20°F  (-29°C)

Parentage  (Seed Parent x Pollen Parent): 

 catawbiense x unknown  

Elepidote (E) or Lepidote (L): 

 E 

Hybridized or Selected by: 

 Seidel 

Registration Reference: 

 RHS 58 

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.

 

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