Why Are My Crape Myrtle Leaves Turning Yellow? Common Causes & Fixes

Troubleshooting Yellowing Leaves on Crape Myrtle

Yellow leaves on crape myrtle (Lagerstroemia) can stem from several issues. Identify the cause by checking soil moisture and recent lawn treatments.

Water Extremes

• Overwatering / poor drainage – "Wet feet" suffocate roots, causing yellowing. Ensure soil drains well; reduce watering if rain has been heavy.
• Drought stress – Prolonged dryness also yellows leaves. Deep-soak once a week during dry periods until regular rain returns.

Lawn Chemical Drift

High-nitrogen lawn fertilizers leaching into the root zone can burn crape myrtle roots and scorch foliage. Keep lawn applications at least several feet away from flowering trees and shrubs.

Recovery Outlook

If the cause is temporary (excess rain or a dry spell), the tree will rebound once conditions normalize. Correct drainage, adjust watering, and shield from lawn chemicals for long-term health.