CHINA SNOW® Pekin lilac is a tree form of lilac with a rounded habit that produces abundant fragrant white blooms and features exfoliating amber colored bark for winter interest. It is a Chicagoland Grows® selection. Chicagoland Grows® is a plant introduction partnership of the Chicago Botanic Garden, the Morton Arboretum and the Ornamental Growers Association of Northern Illinois formed to promote plant cultivars that perform well in northern Illinois. This variety was developed at the Morton Arboretum from seed collected in China during the 1920s.

Members of the genus Syringa, commonly known as lilacs, are shrubs or small trees prized for their showy and fragrant blooms in late spring. The individual flowers are tubular in form and are borne in large panicles. While the common name of the plant has come to define a shade of pale purple, some species and hybrids have pink or white blossoms. Lilacs begin to set buds for the following year shortly after they finish blooming; if pruning is desired, it should be done immediately after flowering to maintain flower production the next year.

Lilacs are native to cooler temperate areas of southeastern Europe and eastern Asia with winter temperatures below freezing; there are no lilacs native to North America. The genus includes at least 12 species and numerous hybrids and cultivars. The Chicago Botanic Garden's collection contains over 50 varieties of lilac and more than 800 plants.