Fertilizer build-up
Brown tips plus frequent feeding usually means salt build-up burning the roots.
Diagnosis
Fertilizer build-up
What's happening
Peace Lily is a light feeder, and excess fertilizer salts accumulate in the soil and burn the fine root tips. That damage shows up as browning leaf tips and edges, often with a white crust on the soil surface or around the drainage holes.
How to fix it
Flush the pot: run plenty of plain water through the soil until it drains freely, several times over, to wash the salts out. Then cut feeding right back — Peace Lily only needs a balanced liquid fertilizer at half strength every 6–8 weeks during spring and summer, and none at all in winter. Trim the burnt tips for a tidier look while clean new growth comes in.
If that doesn't fix it
This is general guidance based on common symptoms; individual plants vary.
Read the full Peace Lily care guide →
Reviewed June 2026 · how we check this