Crepe myrtle is a fast-growing deciduous tree or shrub that is particularly popular in the South and Southeast regions and hardy in zones 6 through 10. Due to its multi-stemmed appearance, the tree is commonly grown in yards and public areas for an addition of color and interest. Dwarf crepe myrtle is perfect for containers and as an accent shrub in flower beds.
In Southern climates, the crepe myrtle begins to flower mid-spring, and in northern areas, it blooms in the summer. Flowering in all regions continues until the fall. The flowers grow in 6 to 12-inch long clusters that are 3 to 5 inches wide, and clusters from the dwarf varieties are smaller.
Crepe myrtle trees are available in a range of flower colors, including purple, lavender, white, pink, and red. Some types of crepe myrtle have bicolor flowers. The bark on the plant peels off in the summer, exposing a new layer.
The crepe myrtle enters a dormant state starting in the late fall and lasting throughout the winter. During this time, the leaves fall off, but the roots keep growing.
https://www.doityourself.com/stry/guide-to-planting-crepe-myrtle