Common Lilac
Syringa vulgaris · Deciduous, Broadleaf, Hardwood
Plant Family
Oleaceae
Tree Category
Ornamental, Flowering
Variety / Cultivar
Species type (Wild type or non-specific cultivar)
Hardiness Zones
USDA Hardiness Zones 3 through 7, tolerating cold winters and requiring a period of winter chill to produce spring flowers reliably.
About This Tree
Multi-stemmed, large deciduous shrub or small tree forming a dense, rounded to upright crown with ascending branches. Grows at a moderate rate, frequently producing suckers from the base.
Leaf Characteristics
Opposite, simple, cordate (heart-shaped) to ovate leaves, measuring 2 to 6 inches long with entire margins and smooth texture. Medium green turning dull yellowish-green in autumn.
Bark Characteristics
Gray to gray-brown bark, smooth on young stems, becoming shallowly furrowed and exfoliating in longitudinal strips on older stems and trunks.
Growing Information
Origin Region
Southeastern Europe (Balkan Peninsula); widely naturalized and cultivated across temperate regions globally.
Growing Season
Spring-flowering deciduous shrub/small tree. Leaf out occurs early in spring, followed by fragrant blooms in late spring. Enters dormancy in late autumn after leaf drop.
Sunlight & Water Needs
Requires full sun for optimal flowering and moderate, well-draining soil moisture. Good drought tolerance once established, dislikes waterlogged soils.
Mature Size
Typically reaches 8 to 15 feet in height with an equal or slightly lesser spread. Moderate growth rate with a lifespan of several decades.
Special Characteristics
Renowned for its intensely fragrant spring flowers, excellent cold hardiness, and resistance to urban pollution, though susceptible to powdery mildew.
Wildlife & Ecology
Attracts various pollinators including butterflies, bees, and hummingbirds to its nectar-rich flowers. Provides light nesting cover for small birds.