Peace Lily Brown Tips: Causes and Cures

Four Common Culprits

Brown tips and edges on peace lily (Spathiphyllum) leaves stem from one of these issues. Use process of elimination:

1. Water quality: Hard or softened water deposits minerals. Switch to filtered, distilled, or rainwater.
2. Over-fertilizing: Excess fertilizer adds salts. Feed only during vigorous growth at half strength.
3. Underwatering: Letting the plant wilt causes brown tips. Water just before wilting.
4. Overwatering: Constantly wet soil causes dark brown tips spreading to whole leaves. Let soil dry nearly to wilt point.

Cosmetic Fix

Trim brown tips with sharp scissors. This improves appearance and lets you monitor if new damage appears.