How to Prune Peace Lily

Spathiphyllum wallisii

Reviewed by Kiersten Rankel M.S.

Quick Answer

Prune Peace Lily as needed throughout the year by removing spent flower stalks and yellow or brown leaves at their base. Cut each stalk as close to the soil as possible without disturbing the surrounding clump. There is no strict seasonal window since this tropical houseplant grows year-round indoors.

When is the best time to prune?

Peace Lily grows year-round indoors and can be tidied up any time, though spring pruning encourages the most vigorous rebloom.

Pacific

Year-round; mainly Mar–Sep

Mountain

Year-round; mainly Apr–Aug

Midwest

Year-round; mainly Apr–Aug

Northeast

Year-round; mainly Apr–Sep

Southeast

Year-round; mainly Mar–Oct

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Why Should I Prune My Peace Lily?

Peace Lily is one of the easiest indoor plants to prune because every leaf and flower grows on its own individual stalk from a central clump. There are no branches or complicated decisions about what to cut. Simply remove what is no longer healthy.

Spent flower spathes (the white hood-shaped blooms) turn green and then brown as they age. Cut the entire flower stalk at the base, as close to the soil as possible. Leaving old stalks on the plant looks untidy and wastes energy that could go toward new blooms.

Yellow or brown leaves are common and normal in Peace Lily. A leaf that has more than half turned yellow or brown should be removed. Grip the base of the leaf stalk and cut or pull it away cleanly at the soil level. It will not turn green again once it starts yellowing.

Avoid trimming brown leaf tips and leaving the rest of the leaf on the plant. Trimming tips looks artificial and the same tip often browns again within weeks. If tips are browning repeatedly, it usually signals low humidity or fluoride in tap water, not a pruning issue.

Know Before You Cut

Difficulty Easy

Max removal Remove only dead or yellow leaves

Growth pattern Clumping tropical

Tools Clean sharp scissors or pruners

What Should I Remove?

Cut spent flower stalks at soil level once blooms fade

Remove yellowed or brown leaves at the base of the stalk

Clean blades before cutting to avoid spreading pathogens

Remove any leaves with black spots or mushy areas immediately

Don't trim just the brown tips, it doesn't fix the underlying cause

Don't yank leaves off, cut cleanly to avoid damaging the crown

Don't remove healthy green leaves to reshape the clump

How Do I Prune Step by Step?

Identify what needs to be removed

Look for flower stalks that have turned green or brown, and any leaves that are more than half yellow or brown. These are your targets. Healthy green leaves stay.

Cut spent flower stalks at soil level

Trace each faded flower stalk down to where it meets the soil and cut cleanly at the base. Removing the entire stalk, not just the bloom, prevents stumps from rotting.

Remove yellowed or dead leaves

Cut yellow or brown leaves at the base of their stalk as close to the soil as you can without disturbing the neighboring stalks. If the stalk is already soft and pulls free easily, you can remove it by hand.

Check for crowding

A mature Peace Lily clump can become very dense. If the center is very crowded and new leaves are struggling to emerge, the plant may benefit from division into two or three smaller clumps.

Got More Questions?

Can I prune Peace Lily in winter?

Yes. Peace Lily lives indoors and grows year-round. You can remove dead leaves and spent flowers any time they appear, regardless of season.

Is it normal for Peace Lily to have brown leaf tips even after pruning?

Yes. Brown tips are usually caused by low humidity, fluoride in tap water, or underwatering, not by pruning. Switching to filtered or distilled water and increasing humidity around the plant helps more than trimming.

What if I accidentally cut a healthy green leaf?

It will not grow back from the cut point, but the plant will produce new leaves from the center of the clump. One removed leaf is not a significant setback.

My Peace Lily hasn't bloomed in a long time. Will pruning help?

Removing old stalks and dead leaves tidies the plant but is not the main trigger for blooming. Peace Lily needs bright indirect light and occasional fertilizer in spring and summer to rebloom consistently.

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About This Article

Kiersten Rankel M.S.

Botanical Data Lead at Greg · Plant Scientist

About the Author

Kiersten Rankel holds an M.S. in Ecology & Evolutionary Biology from Tulane University. A certified Louisiana Master Naturalist, she has over a decade of experience in science communication, with research spanning corals, cypress trees, marsh grasses, and more. At Greg, she curates species data and verifies care recommendations against botanical research.

See Kiersten Rankel's full background on LinkedIn.

Editorial Process

Pruning guidance verified against Spathiphyllum wallisii growth data from Greg's botanical database, cross-referenced with USDA hardiness zone data and published horticultural research.

70,599+ Greg users growing this plant

USDA hardiness zones 10a–12b

Citations:
NC State Extension
Missouri Botanical Garden
Royal Horticultural Society

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