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'Evitwo' clematis Description
'Arctic Queen' clematis photo
Photo courtesy of Brigitta
Availability:
Commercially available
HMF Ratings:
21 favorite votes.  
Origin:
Discovered by Raymond J. Evison (United Kingdom, 1989).
Introduced in United Kingdom by Guernsey Clematis Nursery in 1994 as 'Arctic Queen'.
Class:
Early Large Flowered, Group 2.  
Bloom:
White.  12 petals.  Average diameter 7".  Double bloom form.  Early summer to early autumn.  
Habit:

Height: 6' to 8' (185 to 245cm).  
Growing:
USDA zone 5b through 9b.  Plant in sun or partial shade.  Suitable for growing in a container.  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:
Canada - Patent No: 1987  on  23 Sep 2004
Application No: 95-687  on  22 Dec 1995
Rights surrendered on September 9, 2013.
Denomination: 'Evitwo'
Trade name: Arctic Queen
Breeder: Raymond J. Evison, Raymond J. Evison, Ltd., Channel Islands, United Kingdom
'Evitwo' originated from a polycross made at the Guernsey Clematis Nursery in the Channel Islands, United Kingdom. The variety was the result of a chance pollination between an unknown seed parent and an unknown pollen parent.
 
United Kingdom - Patent No: xxx
Plant Breeder's Rights
 
United States - Patent No: PP 10,167  on  30 Dec 1997   VIEW USPTO PATENT
Application No: 08/627,507  on  4 Apr 1996
Ploidy:
Diploid
Parentage:
Notes:
Chance seedling, possibly of 'Duke of Edinburgh'.