Lilac bushes are a classic in American gardens, and the heart of spring bouquets. The pioneers carried starts of this sturdy shrub across the continent, and it heralds spring from Washington D.C. to Washington State. Use it as an accent, foundation shrub, or planted 3ﾒ apart as a hedge. It does best in full sun, and is relatively pest and disease free. It can develop mildew in damp climates, and should be pruned to encourage good air circulation. The lavishly fragrant blooms may take several years to reach their full potential on newly planted shrubs. USDA Zones 3-9.