When should a Clematis Montana be pruned Autumn or spring?

and by how much

When should a Clematis Montana be pruned Autumn or spring?
Too give a simple answer:


Clematis are placed in 3 group catergories - Clematis Montana is a group 1 - i.e. minimal pruning needs - Although a vigourous climber they should flower in spring directly on last seasons growth.


Clematis Montana should be pruned hard once planted, and if becoming untidy you can prune in spring directly after flowering but pruning should be light, just enough to keep it with a nice shape and looking tidy.


If you do prune too much - it will recover the next year though.


I sugggest leaving pruning now till next year.

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