Syringa reticulata subsp. pekinensis (formerly known as Syringa pekinensis), also known as the Pekin lilac or the Chinese tree lilac, grows in an open, multi-stemmed form to a height of 15 to 20 feet (4.6 to 6.1 m), with a spread of 10 to 15 feet (3.0 to 4.6 m). They are native to northern China but grow in USDA hardiness zones 3 through 7. It is grown as an ornamental tree in Europe and North America.