Lagerstroemia indica likes warm and humid climate, likes light, slightly shade-tolerant, likes fertilizer, especially deep and fertile sandy loam, it is best born in slightly humid places, and it is also drought-resistant, avoid waterlogging, and avoid planting in low-humidity places with high groundwater level , It likes warmth in nature, but can resist cold, and has strong sprouting and tillering properties. Lagerstroemia indica also has strong anti-pollution ability, strong resistance to sulfur dioxide, hydrogen fluoride and chlorine.

Deciduous shrubs or small trees, up to 7 m tall; bark smooth, gray or grayish brown; branches mostly twisted, slender, 4-sided, slightly winged. Leaves alternate or sometimes opposite, papery, elliptic, broadly oblong or obovate, 2.5-7 cm long, 1.5-4 cm wide, apex mucronate or obtuse, sometimes slightly concave, base broadly cuneate or nearly round , glabrous or puberulent below along midvein, lateral veins 3-7 pairs, small veins inconspicuous; sessile or petiole very short.
Lagerstroemia indica flowers are pale red or purple, white, 3-4 cm in diameter, often composed of terminal panicles of 7-20 cm; pedicels are 3-15 mm long, rachis and pedicels are pubescent; calyx is 7-10 mm long , outside smooth and without edges, but when fresh, calyx tube has slightly raised short edges, both sides glabrous, lobes 6, triangular, erect, without appendages; petals 6, shriveled, 12-20 mm long, with long claws; stamens 36 -42, outer 6 inserted on calyx, much longer than others; ovary 3-6-loculed, glabrous. Capsule ellipsoid-spherical or broadly elliptic, 1-1.3 cm long, green to yellow when young, purple-black when mature or dry, dehiscing on the back; seeds winged, about 8 mm long. Lagerstroemia indica blooms from June to September and fruit from September to December.