Syringa reticulata is a species of Lilac, native to eastern Asia: in northern Japan (mainly Hokkaido), northern China (Gansu, Hebei, Heilongjiang, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shanxi, Sichuan), Korea, and far southeastern Russia (Primorye).
Syringa reticulata is a deciduous small tree growing to a height of 39 '(12 m), rarely to 49' (15 m), with a trunk up to 11.8 "(30 cm), rarely 15.7" (40 cm) diameter; it is the largest species of lilac, and the only one that regularly makes a small tree rather than a shrub. The leaves are elliptic-acute, 1 "-6" (2.5-15 cm) long and 1/2 "-4" ( 1-8 cm) broad, with an entire margin, and a roguish texture with slightly impressed veins. The flowers are white or creamy-white, the corolla with a tubular base 0.16 "-0.24" (4-6 mm) long and a four-lobed apex 0.12 "-0.24" (3-6 mm) across, and a strong fragrance; they are produced in broad panicles 2 "-11" (5-30 cm) long and 1 "-8" (3-20 cm) broad in early summer. The fruit is a dry, smooth brown capsule (15-25 mm long), splitting in two to release the two winged seeds.
Easily grown in average, medium, well-drained soil in full sun. Tolerates light shade, but best bloom is in full sun. Prefers rich, moist, slightly acidic to slightly alkaline soils. Needs good air circulation. To the extent practicable for a small tree, prompt removal of faded flower panicles before seed set will increase bloom in the following year. Prune immediately after flowering.
This Japanese tree lilac cultivar is a small tree or large shrub which typically grows 20-25 'tall with a rounded crown. Creamy white, fragrant, single flowers are arranged in dense, terminal clusters (panicles to 12 "long). Blooms later than most other species of lilac (late May to early June in St. Louis). Elliptic to ovate, dark green leaves (to 5 "long). Attractive reddish-brown bark.
No serious insect or disease problems. This lilac is considered to be a low maintenance plant with excellent resistance to powdery mildew and other common lilac diseases. Young leaves are susceptible to frost injury in spring.
Specimen or small groups. Street tree, lawn specimen, property line screen, near buildings.