Why does Ziwei flower mutate?

The light is insufficient. Ziwei likes to grow in warm and sunny places. Because the environment is humid and the light is not enough, the variation of flowers is caused. The solution is to transplant it into a sunny environment. Lagerstroemia speciosa is a small deciduous tree or shrub of Lagerstroemia in Lysimachiaceae. Its trunk is tall and its bark is smooth and gray or taupe.