Vitex aka Lavender Tree, Chaste
Fast growing small ornamental tree is sometimes called Chaste tree or Texas Lavender. Usually multi-trunked.
Spikes of lavender blue flowers appear in early summer and fall. Leaves are aromatic. Pink and white varieties are sometimes available. "Montrose Purple", "LeCompte", and "Shoal Creek", are Texas Superstar plants. Deciduous.
Average size in the landscape: ALS-20'T x 15'W
Average height: 16-20'
Bloom Time: Early Summer and Fall
Exposure: Full Sun to Partial Shade
Water Usage: Medium