Why Lower Leaves Turn Brown on Dieffenbachia

Common Causes

1. Overwatering: Let top 1/3 of soil dry between waterings. Finger-test deep.
2. Low light: Needs bright indirect. North window ideal.
3. Recent repotting: Dieffenbachias prefer potbound. Repotting causes root stress → lower leaf loss.

Action

• Adjust watering.
• Move to brighter spot.
• If repotted recently, consider moving back to original pot size.

Lower leaf loss is natural as the plant grows upward, but excessive loss signals a problem.