Chelsea chop Posted on 5th Jun 2018 Thalictrum in B2 before Chelsea chop Lysimachia in B1 before Chelsea chop Lysimachia B1 before Chelsea chop Chelsea was last week. I cut two thirds of the thalictrum in B2 and the lysimachia in B1 to about half height. We’ll see what happens. See also May 18, May 17