Lilac trimming in St. Paul
I have read that lilacs should be trimmed "soon" after they bloom, but "soon" is not defined. I have to cut a large established lilac down to install a fence. It will probably be cut in early July. Given that I am in St Paul, should I expect no blooms the following spring? Also, is there any guidance you can provide about how it should be done in mid-July, given it bloomed in early May? Thank you.
Ramsey County Minnesota