I have two substantial lilac bushes, one by the house and one by the barn. Both are just starting to open some of the buds and the scent is starting to permeate. This town where I live is filled with lilac bushes –entire hedge rows of lilac. Once they all really open, bike rides around town are lilac scented extravaganzas. I will try to remember this year to take some pictures of the impressive masses of them.