My Common Lilac, Syringa vulgaris, is in full bloom, the third week in June, 2012 here in Rollinsville. I planted it about 10 years ago in a southerly protected area close to the house and now it's at least 12 feet tall. The swallowtail butterflies arrived first last week and they are abundant, flying all over it. Today there are orange butterflies and smaller yellow butterflies completely drawn in by the overwhelming aroma of the lilac. It's such a joy to smell and see!