There is a flower tree in the flower bed. Its flowers are white, pink and purple. What kind of flower tree is this?

Deciduous shrubs or small trees, up to 7 meters high, with irregular crown, smooth bark, light brown and four edges of tender branches; Leaves opposite, oval to round, 3-7 cm long; The panicle is terminal, with reddish purple flowers, also known as Lagerstroemia indica, and the stem is 3-5 cm. The flowering period is long, from June to September; The capsule is nearly spherical, the stem is about 1.2 cm, and the fruit matures10-1month.

Type:

Wei Zi: Flowers are purplish red. ?

(2) Cuiwei: the flowers are blue and the leaves are dark green. ?

(3) Red tail: fireworks red. ?

(4) Yin Wei: The flowers are white or slightly cocoon-colored, and the leaves are light green.