By Pam_m
I have a 20 year old forsythia bush that has been pruned each year, but now has grown very woody. How low can I prune it without killing it off!
6 Apr, 2014
Answers
If you stick some of the prunings in the ground they will probably root quite easily too.
6 Apr, 2014
they are tough plants, mine was very woody, cut it right down thinking of having a change. but it shot new stems from the ground. did put up with rejuvenated bush for two years, but finally dug it out to plant a new rose, have kept a cutting though, just in case?
6 Apr, 2014
Wait until it's finished flowering and cut out 1/3 of the old wood - especially any branches that are crossing each other or growing inwards.
Cut the rest down by 1/3 when the plant is dormant (ie when it's lost its leaves but before it starts budding next spring) then pruned out 1/3 of the old wood each year.
6 Apr, 2014