Does Lagerstroemia speciosa in the courtyard have to be purple?

Lagerstroemia speciosa in the courtyard is not necessarily purple.

Lagerstroemia indica is a plant of Lagerstroemia in Lysimachiaceae. Deciduous shrub or small tree crape myrtle is 7 meters high, with twisted branches, slender branchlets and smooth bark, which is gray or grayish brown. Leaves alternate or sometimes opposite, papery, oval, oblong or obovate, green to yellow when young, purple-black when mature or dry, and cracked on the ventral surface; Seeds winged, ca. 8 mm long; The flowering period is from June to September, and the fruiting period is from September to June.

Lagerstroemia indica, also known as full house red, is a widely planted flower viewing tree species. It is the city flower of Xuzhou and Haining. The flowers of Lysimachiaceae are red and purple.