Name: Ron Wolcott Marietta, GA (Zone 7b) Only time will tell.....
I have never grown lilacs, but remember the beauty of them from my childhood in Nebraska and Kansas. I did stumble across an article last year from Illinois that might help you diagnose you situation. Hope it helps. https://extension.illinois.edu...
Ron
My Golden Rule: Only Take Advice From People Who Are Currently Doing What You Want to Do and Being Who You Want to Be!