catjac1975
Garden Master
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I get a mottled look on the skin-I guess it's fungus. or blight
You can prune in the summer if it's August or later. Before that the tree has too many growth hormones going to the ends of the branches and you will get a lot of twiggy sprouts at the cuts. Late winter is a good time too, and traditionally when most pruning is done.
Don't do like me and wait until the buds are swelling in the spring or you will be dealing with all the twiggy growth I mentioned.
Lilacs should be pruned right after bloom. You may have cut off all of this years blooms. If you have a time when the lilacs do not bloom they respond well to root pruning.errrr, ummmmm, is this true with lilacs as well? As in the lilacs I am pruning drastically right now? Cripes. So.......what you're telling me is I spent 4 or 5 hours, over several different days, cutting out all kinds of water sprouts and rubbing branches and suckers, only to create MORE work next year when I get a ton more twiggy growth?