Flower Gardens

Peace Lily Care: Watering, Light & Why Leaves Turn Yellow

Good peace lily care means bright, indirect light, watering when the top inch or two of soil feels dry, and keeping the plant out of cold drafts. The peace lily (Spathiphyllum) is forgiving: it droops dramatically when thirsty and usually perks up within hours of a drink.

That forgiving nature makes it one of the most popular houseplants for offices and living rooms. Most problems come down to too much water, too much sun or untreated tap water, and each one is easy to fix once you know what to look for.

Peace lily care: a white peace lily blooming among green leaves

Quick Answer: Peace Lily Care at a Glance

  • Light: bright, indirect light; it tolerates low light but flowers less.
  • Water: when the top 1 to 2 inches (2.5 to 5 cm) of soil are dry, usually once a week.
  • Temperature: about 65 to 80°F (18 to 27°C); avoid anything below about 55°F (13°C).
  • Humidity: average to high; mist or a pebble tray helps.
  • Feeding: a balanced houseplant fertilizer every six to eight weeks in spring and summer.
  • Pets: toxic to cats and dogs if chewed.

Light: Where to Put a Peace Lily

In nature, peace lilies grow on tropical forest floors under tall trees, so they like filtered light. A spot a few feet from an east or north window is ideal. Direct afternoon sun scorches the leaves, leaving pale or brown patches.

A plant in a dim corner may survive for years, but it will usually produce only leaves. If you want the white flowers, which are actually modified leaves called spathes, move it to a brighter place.

Peace Lily Care: Watering Done Right

  1. Push a finger into the soil. If the top inch or two is dry, it is time to water.
  2. Water slowly until it runs out of the drainage holes.
  3. Empty the saucer after 15 minutes so the roots do not sit in water.
  4. Reduce watering in winter, when growth slows.

Peace lilies are sensitive to minerals and chemicals in tap water. If you see brown leaf tips, try rainwater, filtered water or tap water that has stood out overnight.

Why Peace Lily Leaves Turn Yellow

Yellow leaves are the question people ask most. Here are the usual causes and fixes.

SymptomCauseFix
Yellow leaves, soggy soilOverwatering or poor drainageLet soil dry; repot if roots are brown and mushy
One old leaf yellowingNormal agingCut it off at the base
Yellow with pale, bleached patchesToo much direct sunMove to indirect light
Brown, crispy tipsDry air, tap water minerals, over-fertilizingUse filtered water, raise humidity, feed less
Drooping despite moist soilRoot rotCheck roots and repot in fresh mix
Drooping with dry soilThirstWater well; it should recover quickly
Gloved hands holding a peace lily in a terracotta pot

Repotting and Soil

Repot every one to two years, in spring, when roots circle the pot or poke out of the drainage holes. Choose a pot only one size larger, with drainage holes, and use a light, well-draining potting mix with some perlite. An oversized pot holds extra wet soil and invites rot.

A crowded plant can also be divided. Tease the clumps apart gently, make sure each piece has roots and several leaves, and pot them separately.

How to Get a Peace Lily to Bloom

  • Provide bright, indirect light for several hours a day.
  • Feed lightly in spring and summer with a balanced fertilizer.
  • Keep the plant mature: very young plants may not flower yet.
  • Keep temperatures steady and avoid cold drafts.

When a bloom fades and turns green or brown, cut its stalk back to the base so the plant puts its energy into new flowers.

Are Peace Lilies Toxic to Pets?

Yes. Peace lilies contain calcium oxalate crystals that irritate the mouth and stomach, causing drooling, vomiting and pawing at the face in cats and dogs. The ASPCA lists the peace lily as toxic; see its toxic and non-toxic plants list and call your vet if a pet chews the plant. Despite the name, it is not a true lily, so it does not carry the severe kidney risk that true lilies pose to cats, but it still belongs on a high shelf.

Looking for other houseplants that flower indoors? Try our guides to how to care for orchids, Christmas cactus care and poinsettia care.

Conclusion

Peace lily care is mostly about balance: bright indirect light, water when the soil’s top layer is dry, and filtered water if your tap water leaves brown tips. Fix yellow leaves by checking moisture first, and keep the plant away from curious pets.

FAQ

How often should I water a peace lily?

Usually once a week, but check the soil rather than the calendar. Water when the top inch or two is dry.

Can a peace lily live in low light?

Yes, it survives in low light, but growth slows and it rarely flowers. Medium to bright indirect light is better.

Why is my peace lily drooping?

Most often it is thirsty and will recover after a thorough watering. If the soil is wet, the cause is likely root rot from overwatering.

Should I cut off brown leaf tips?

You can trim them with clean scissors, following the natural leaf shape, for looks. Fix the cause too, usually dry air, tap water minerals or too much fertilizer.

Is a peace lily a true lily?

No. It belongs to the arum family and is related to anthuriums and philodendrons, not to true lilies in the genus Lilium.