Lilac flower is super popular for weddings! Lilac flowers are fragrant, thickly massed small star-shaped florets in pyramid-shaped clusters, 6 to 10 inches long at the end of woody stems. Frequently displayed alone in a vase, these beautiful blossoms are a wonderful accent in mixed arrangements or in your wedding bouquet, giving a pretty woodsy, wildflower feel to the bouquet. Choose from white or purple lilac wedding flowers. Is there anything as sweet as the faint hint of Lilac? Unfortunately, Lilac flower blooms for only a very brief couple weeks in the spring. We usually ship our Lilac wedding flowers from January through Mid May.