Short answer
Brown, crispy tips on a Peace Lily are almost always caused by sensitivity to fluoride, chlorine, or mineral salts found in common tap water. The most effective fix is to switch to filtered, distilled, or rainwater and ensure you are flushing the soil thoroughly during watering sessions to remove salt buildup.
Peace Lilies (Spathiphyllum wallisii) are famous for their dramatic, tell-tale drooping when they need water, but crispy brown leaf tips are a more persistent, non-lethal frustration. While usually cosmetic, these brown edges indicate that the plant is struggling to process the solutes in your water source or is suffering from minor environmental stress, but they rarely signal an immediate threat to the plant's survival.
Peace Lilies are highly sensitive to the chemical additives in treated tap water. These minerals accumulate at the very ends of the leaf veins, causing the tissue to die and turn brown.
Check: Check your local water utility report for fluoride levels or notice if the browning appears only after routine watering with tap water.
Fix: Switch to using distilled water, rainwater, or an aquarium-grade water conditioner to remove heavy minerals.
Over-fertilization or the use of hard water can lead to a buildup of mineral salts in the soil. These salts draw moisture away from the roots and leaves, leading to dehydration of the leaf margins.
Check: Look for a white, crusty residue on the surface of the soil or the rim of the pot.
Fix: Flush the soil by running room-temperature, filtered water through the pot for several minutes to wash away excess salts, then resume a light fertilization schedule.
While they tolerate average home conditions, Peace Lilies are tropical understory plants that prefer high humidity. Dry air causes the thin leaf tips to lose moisture faster than the roots can replace it.
Check: Observe if the tips feel exceptionally dry and if the browning accelerates during winter months when indoor heating is running.
When to worry
Browning is typically cosmetic and safe to ignore unless more than 30 percent of the total leaf surface is affected or the plant shows signs of root rot, such as mushy stems.
Not sure which cause it is?
Upload a photo of your Peace Lily and get a diagnosis in seconds.
Diagnose my Peace LilyYes, you can trim them for aesthetic reasons. Use sharp, sterilized scissors and cut just inside the brown area, leaving a tiny sliver of brown to avoid cutting into healthy green tissue, which can trigger further browning.
While severe dehydration will kill a plant, a Peace Lily usually communicates thirst by wilting. If the leaves are firm but have crispy tips, it is almost certainly a water quality or humidity issue, not a lack of volume.
No, the brown tissue is dead and cannot be revived. Once you correct the underlying environmental issue, only the new growth will remain completely green and healthy.
Consistent with guidance from: Missouri Botanical Garden Plant Finder, Royal Horticultural Society Indoor Plant Care Guides.
Fix: Place the plant on a pebble tray with water or use a nearby humidifier to keep ambient humidity above 50 percent.
Direct sun exposure can scorch the delicate leaf tips of a Spathiphyllum. Even though they are low-light plants, they can withstand some indirect light, but harsh rays will cause localized burning.
Check: Check if the browning is occurring specifically on leaves exposed to direct sunbeams during the afternoon.
Fix: Move the plant to a spot with medium, filtered, indirect light, away from windows with harsh direct exposure.