Blooms come in 4 petals to 5 petals,intense purple. Very floriferous.
by Kell Jun 3, 2005 11:05 PM
This has the longest blooming period of any clematis.
by Kell Jun 2, 2005 11:05 PM
Clematis "Harlow Carr", Toronto Botanical Garden, June 2007.
by RosemaryA Mar 8, 2008 5:19 PM