Hi Tim, I have several lilacs and plenty of deer too. So far they have not bothered the lilacs but that just might be because they have more tasty things to eat. That is the way deer are. They might turn to something they don't like when they can nolonger get enough of the things they prefer. In the twenty years I've been here they have not bothered the lilacs, tree peonies or holly. I'll bet your lilacs are save, but there are no guarenties when it comes to deer. Good luck, Jerry

This site could sure benefit from an automatic spelling correction utility, if there is such a thing. Anyway, I don't think lilacs are a favorite of deer either. As indicated, however, when desperate (winter starvation is a normal occurrence for them) they may suddenly attack something they have never touched before. If you want a guarantee, add more fencing.