I have a Jackman II and a Huvi TM clematis. I did not prune them this fall. When do I prune them and how?
Hardiness Zone: 6a
Peg from Springboro, OH
You should prune Jackmanii, a category 3 clematis in early spring and prune hard to about 3 inches. The Huvi can be pruned in very early spring, but not as hard. (03/06/2009)
Here is a website that is very helpful.
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