Close up of a lilac bud newly opened and fuzzy. The purplish buds will become the familiar cascade of fragrant clustered flowers. The lilac is a member of the olive tree species native to the Balkan Peninsula. Lilacs have been widely cultivated an ornamental plant in Europe and North America. In the mid-16th century, the Persian Lilac was introduced to European gardens from gardens in the Ottoman Empire. Lilac tend to bloom more vigorously in alternate years. Our lilacs are in that cycle now. We look forward to delicate flowers and sweet fragrance that accompanies them.