Who can tell me how to distinguish flowering Lagerstroemia indica from non-flowering Lagerstroemia indica?

Lagerstroemia indica will blossom, and there is no distinction between male and female.

Lagerstroemia indica is a deciduous shrub or small tree, and it is easy to survive by cutting. Strong cuttings can bloom in the same year. Lagerstroemia speciosa likes warm and humid climate, sunshine, semi-shade tolerance, fertility, drought tolerance, fear of water inrush, and has low requirements for soil, and calcareous soil grows best.

Pay attention to water and fertilizer management when cultivating Lagerstroemia indica, otherwise it will inhibit plant growth and affect flowering. Generally, attention should be paid to watering in dry season, and some organic fertilizer should be applied properly before germination. After the leaves fall in autumn, the management department should cultivate ditch mud and rich soil to promote the growth and flowering of plants. If there are no seeds left after flowering, the ear of the fruit should be cut off to save nutrition. Conducive to flowering in the coming year.