Peace Lily Root Rot Treatment Guide

By Sophia Martinez · May 22, 2026

How to Treat Root Rot in Peace Lily

Peace lilies are among the most popular houseplants, but they are surprisingly vulnerable to root rot. The irony is that root rot often happens to plants that are being "well cared for" — overwatered in pots without adequate drainage. Catching and treating root rot early can save your peace lily.

Signs of Root Rot in Peace Lilies

Yellowing leaves: Starting with the oldest, lowest leaves
Wilting despite wet soil: The classic overwatering paradox — roots are drowning and can't absorb water
Foul smell from soil: A musty, decaying odor indicates active rot
Black, mushy roots: Healthy roots are white and firm; rotting roots are brown-black and squishy

Step-by-Step Treatment

Remove the plant from its pot: Gently shake off all soil to expose the roots
Cut away all rotten roots: Use sterilized scissors; cut until you reach white, firm tissue
Remove affected leaves: Yellow and brown leaves will not recover
Rinse remaining roots: Rinse under lukewarm water to remove soil and bacteria
Treat with hydrogen peroxide: Dilute 3% hydrogen peroxide (1 part peroxide to 2 parts water) and soak roots for 5 minutes
Repot in fresh, well-draining soil: Use a mix of potting soil, perlite, and orchid bark
Do not water immediately: Wait 2-3 days to let roots heal before watering

Preventing Future Root Rot

The key prevention strategy is watering only when the top inch of soil is dry. Peace lilies prefer to be slightly underwatered rather than overwatered. Ensure your pot has drainage holes, and never let the plant sit in standing water.

Can a Peace Lily Recover from Severe Root Rot?

If more than half the root system is rotted, recovery is unlikely. However, you can try propagating remaining healthy crown sections in water. Once new roots form (2-4 weeks), transplant to soil.

Conclusion

Root rot in peace lilies is almost always preventable with proper watering habits. If it occurs, act quickly — cut away the rot, treat the remaining roots, and repot in well-draining medium. Most peace lilies recover fully when root rot is caught early.