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'Ken Donson' clematis Description
'Ken Donson' clematis photo
Photo courtesy of Alana Strang
Availability:
Commercially available
Synonyms:
HMF Ratings:
6 favorite votes.  
Origin:
Bred by Walter Pennell (United Kingdom, 1962).
Introduced in United Kingdom by Pennell & Sons Nursery in 1976 as 'Ken Donson'.
Class:
Early Large Flowered.  
Bloom:
Blue, yellow anthers.  6 petals.  Average diameter 7".  Single bloom form.  Early summer to early autumn.  
Habit:

Height: 8' to 10' (245 to 305cm).  
Growing:
USDA zone 4b through 9b.  Plant in sun or partial shade.  It blooms on the previous year's growth, so resist the urge to prune it in early spring.  
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
Diploid
Notes:
 
 
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