Lilacs are difficult to grow here in No.Cal. We don't have enough chill time to do them real justice. But I keep my plant for some mystery reason. It's blooming now.. there are no leaves on the bush, and only about a dozen blooms. I cut off the prettiest to bring inside hoping that it would perfume the house. Alas, it does not smell. Not sweet, not ugly, not anything.
But it does make a nice composition in my magnet vase on the refrigerator, I think.