clematis vines - Knowledgebase Question

centennial, Co
Avatar for lharlamert
Question by lharlamert
June 30, 2010
I have an Sweet Autum Clematis and a Jackamani- when do I prune them- do I ever take away all the under growth after the winter which looks dead? Thanks

Answer from NGA
June 30, 2010
Sweet Autumn vine can be cut back as hard as needed in very early spring. It blooms on the new growth of the season, so pruning it in spring is the best time. This vine tends to establish slowly and then kick into much faster growth about the third year, so be prepared for a large vine by the end of the season -- it can reach 20 feet over the summer. Jackmanii hybrids are vigorous plants that also flowers on new wood, and flower best if the plant is severely pruned in the early spring, just as the buds begin to swell.

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