Q: We have a large tree-form lilac that needs to be trimmed back quite significantly. I can’t trim very far before I cut off a lot of leaves. What’s the best way to do this? Should I be concerned that ...

Q: What’s growing on the trunk of my lilac tree? — Phyllis D. A: Your photo shows mushrooms growing on the trunk, which are the visible, exterior "fruiting bodies" of fungi. Mushrooms generally live ...

I got an email from one of my readers a couple of weeks ago who has enjoyed my column for a number of years, and she asked me whether she should prune her lilac now and how she should go about pruning ...