Peace Lily Care Guide

Spathiphyllum wallisii

Glossy leaves, white blooms in low light, and the most dramatic thirst signal in the plant world: it faints, you water, it forgives you within the hour.

Aroid family · Flowering Easy going Toxic to pets Last verified October 2026
Peace Lily

Peace Lily — Care Dashboard

The whole plant at a glance · Spathiphyllum wallisii
Light
Medium to low light
Water
Weekly, keep moist
Difficulty
Easy going · 2 of 5
Humidity · Temp
50 to 70% · 18 to 27 C
Toxic to pets — Contains calcium oxalates. Keep away from cats and dogs.

Light

Bright indirect light blooms best, but it flowers and grows in medium and low light too. Too much direct sun yellows the leaves.

Water

Keep the soil lightly moist. When it droops, water deeply and it will stand back up the same day.

Soil and potting

A rich mix that holds gentle moisture: standard potting soil with about a third perlite stirred through so the roots still breathe. Repot each spring or whenever roots start circling the drainage holes, going up one pot size. A peace lily in too large a pot stays wet for too long and sulks, so keep the steps small.

Humidity and temperature

It enjoys the 50 to 70 percent humidity range and will tell you with brown leaf tips when the air runs dry, especially in heated winter rooms. A spot in a bright bathroom suits it beautifully. Keep it between 18 and 27 degrees and away from cold drafts; below about 15 degrees growth stops and leaves can blacken at the edges.

Feeding

A balanced liquid feed at half strength every six weeks through spring and summer keeps the leaves deep green and encourages blooms. More is not better: heavy feeding is a known cause of green tinted flowers and burnt leaf tips. Stop feeding in winter.

Propagation

Division is the way. In spring, tip the plant out, tease the clump apart into sections that each carry leaves and their own roots, and pot each piece in fresh mix. Keep the new plants moist and out of direct light for a few weeks while they settle, and they will grow away as independent plants.

Common problems

SymptomLikely causeFix
Brown leaf tipsDry air and minerals in the waterTrim the brown away, flush the soil with plain water, and raise the humidity a little Humidity
No flowers for monthsNot enough lightMove it to the brightest indirect spot you have; blooms follow light Light
Lower leaves yellowingSoil staying too wetLet the top few centimetres dry before watering, and never leave it standing in water Water
Blooms opening greenToo much feed, or light recently changedSkip feeding for a couple of months and keep its light steady; white blooms return Feeding

Quick questions

Is a peace lily safe for cats?
No. It contains calcium oxalates and the ASPCA lists it as toxic to cats and dogs. The name is misleading; it is not a true lily, but it still does not belong near pets.

How do I bring it back after a full faint?
Water it deeply and wait. A peace lily that has drooped from thirst usually stands back up within a few hours, with no harm done.

Why does mine flower in spring only?
That is its natural rhythm in most homes: a main flush in spring, then scattered blooms when light and food are right through summer.

Sources: ASPCA Toxic and Non Toxic Plants list; NC State Extension Plant Toolbox; Missouri Botanical Garden Plant Finder · Care facts last verified October 2026.