| Re: Buddleia davidii I chop mine back in September/October, when they have finished flowering/seeding - earlier if I want to stop them seeding all over the place!
You don't ask but I cut them back to a constant height - about 2m - I know some people cut them back more drastically, so that could affect timing .... ?
Last edited by Paul mabbott; 09-07-2007 at 05:11 PM.
Reason: afterthought
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