Crepe Myrtle (Lagerstroemia indica)–Trees of Sonoma County

The Crepe Myrtle is a deciduous tree that is native to eastern Asia and is prized for its showy, long-lasting summer blooms. It is a popular landscape and street tree in Sonoma County and comes in a variety of sizes and colors.

General Information

Scientific Name: Lagerstroemia indica

Native to: Eastern Asia

Mature Size: 10-30 ft tall and wide, depending on the variety

Growth Rate: Moderate

Ideal Planting Location: Full sun, well-draining soil

Water Requirements: Crepe Myrtles prefer moist soil but can tolerate some drought. Water regularly during the growing season and reduce watering in the fall to prepare the tree for dormancy.

Common Pests and Diseases

Crepe Myrtles are susceptible to a few pests and diseases, including aphids, powdery mildew, and leaf spot. To prevent these problems, maintain good tree health by avoiding damage to the tree’s roots and trunk, and promptly treat any signs of pest or disease infestations.

Additional Care Tips

Mulch around the base of the tree to conserve moisture and suppress weeds.

Prune the tree during the dormant season (winter to early spring) to remove dead or diseased branches, improve air circulation, and promote healthy growth. Pruning can also be done in the summer to shape the tree and encourage blooming.

Fertilizing the tree once a year in the early spring to provide it with essential nutrients can be helpful for overall tree vigor.