What is the life span of a crepe myrtle?

Crepe myrtles are generally quite long-lived trees. In ideal conditions, they can live for up to 50-100 years. Some varieties, such as the Natchez crepe myrtle, have been known to live for even longer. However, the lifespan of a crepe myrtle can be affected by a number of factors, including climate, soil conditions, and care.