I have a dark purple heirloom lilac tree that could be as old as the house.
It produces lots of blooms in April-May. But evenso, I think it is slowly dieing. It developed some insect issues on the trunk during the recent drought. Now a good sized branch is leaning heavily. I think it would break if I hadn't added a makeshift concrete support. That branch used to be much higher. I used to be able to walk under it. Now it almost touches the ground. I am wondering if the holly tree sprout at the base is causing this. I can't see how big the root is, but the holly tree sprout is very close to the base of the lilac. I am attaching some photos.
I've been planting sprouts from this tree in other locations around my yard. So if it dies, at least I have those.