Who knows what crape myrtle this is?

What kind of crape myrtle is the picture you provided? According to our identification of the pictures, this Lagerstroemia indica variety should be fast-growing Lagerstroemia indica.

The advantage of fast-growing Lagerstroemia indica is that it grows fast, but it also has many disadvantages. Citigroup is short, has few or no flowers, is not resistant to freezing, and is prone to pests and diseases.

If high-quality varieties are needed, it is recommended to plant authentic Lagerstroemia indica whose flowering period exceeds 100 days.

Reference: Network Link