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'Chalcedony' clematis Description
'Chalcedony' clematis photo
Photo courtesy of S. Erbice
Availability:
Commercially available
Synonyms:
HMF Ratings:
8 favorite votes.  
Origin:
Bred by Ellis Strachen (United Kingdom, 1976).
Introduced in United Kingdom by Peveril Clematis Nursery in 1984 as 'Chalcedony'.
Class:
Early Large Flowered, Group 2.  
Bloom:
Blue.  50 to 60 petals.  Average diameter 6".  Double bloom form.  Late spring to early summer, late summer.  
Habit:

Height: 8' to 10' (245 to 305cm).  
Growing:
USDA zone 4b through 9b.  Best in partial shade.  This plant blooms twice.  It blooms on the previous year's growth, so resist the urge to prune it in early spring.  However, if you garden in a place with cold winters, Mother Nature will more than likely prune the plant for you.  It will bloom a second time on new growth.  
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
Diploid
Notes:
double bloom on early flowering period, single bloom in late summer
 
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