How old are your lilacs? I have several 40 year old lilac bushes that are not blooming well any more. I’ve been told that I should prune them half off and wait 2 years. They should come back strong the 2nd year.
But, I’ve also noticed that nobody’s lilacs are doing well in Wisconsin. I think it might be our strange weather this year.
This bush is probably about 12 years old. My newer Lilacs are between 2-8 years old. I drove around the neighborhood today and saw that no one’s Lilac has a bloom. All are placed in different locations (North, South, East, West) and all vary according to species. I did read online that Lilacs do best in a yard NOT well kept (meaning no fertilizer etc). My neighborhood has lots of folks with a yard without one weed. I’m beginning to think this may be the culprit. Thanks, AFTR!
Somebody’s lilacs are doing well. In New Glarus there’s a lilac bush that’s just thick with blossoms! I see it driving to and from my land.