Peace lily leaves turning yellow: causes and fixes

Peace lily leaves most often turn yellow because of watering stress—especially soil staying too wet—but excessive drying or an occasional aging leaf can look similar. ([extension.umd.edu](https://www.extension.umd.edu/resource/overwatered-indoor-plants))

AI illustration of a yellowing peace lily leaf with green remaining near the midrib and a small brown tip. — AI illustration

Not sure it's this? Scan your plant — free

What it is

Leaf yellowing is a visible symptom of stress or natural aging, not a diagnosis of one particular disease. When excess water deprives roots of oxygen, damaged roots struggle to supply the leaves with water; excessive dryness can also cause yellowing and leaf loss. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Also called: Yellowing peace lily leaves

Plants affected: Peace lily (Spathiphyllum species and hybrids)

Symptoms

Lower or inner leaves turn yellow, sometimes with wilting despite wet soil. ([extension.umd.edu](https://www.extension.umd.edu/resource/overwatered-indoor-plants))
Leaves droop and develop yellow edges after the potting mix becomes excessively dry. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
An occasional older leaf yellows and dies while the rest of the plant appears healthy. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Causes

Watering too often, poor drainage or standing water around the pot keeps roots too wet. ([extension.umd.edu](https://www.extension.umd.edu/resource/overwatered-indoor-plants))
Letting the potting mix dry excessively between waterings. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
Unsuitable light, cold exposure, nutrient shortages or sap-sucking pests can also cause yellowing. ([ipm.ucanr.edu](https://ipm.ucanr.edu/home-and-landscape/houseplant-problems/))
Natural aging, particularly when yellowing is gradual and limited to occasional older leaves. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

How to tell it apart

Feel the mix about 1 inch below the surface before watering. Wet mix plus yellowing lower leaves points toward excess moisture; very dry mix plus drooping suggests underwatering. Neither leaf color nor drooping alone proves the cause, because damaged, waterlogged roots can produce drought-like symptoms. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Spider mite damage: Look for many tiny pale speckles rather than uniform yellowing, with possible fine webbing and mites beneath leaves. ([ipm.ucanr.edu](https://ipm.ucanr.edu/home-and-landscape/houseplant-problems/))
Sun scorch: Brown, scorched patches following direct-sun exposure suggest sun damage rather than watering stress alone. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
Nutrient deficiency: Yellow tissue between veins that remain green can indicate magnesium deficiency, but the pattern alone is not confirmation. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
A spent flower: The formerly white, hood-shaped flower covering can turn green, then yellow or brown as it ages; this is different from foliage yellowing. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Treatment

Check moisture before adding water Today, feel about 1 inch into the mix. If wet, hold off and check again before the next watering; water only when it feels somewhat dry at that depth. Do not deliberately dry the entire root ball. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))
Remove standing water and water thoroughly when needed Empty the saucer or decorative outer pot now. When watering is needed, apply room-temperature water until it drains from the bottom, then promptly discard the runoff. If very dry mix has pulled away from the pot, several slow applications may be needed to moisten it. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
Correct harsh light and drafts This week, choose bright indirect light, away from direct sun and heating or air-conditioning vents. Keep temperatures above 60°F. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
Inspect roots if wilting persists in wet soil Gently slide the plant from its pot to inspect the roots. Brown or black, soft roots raise concern for rot. If you find them, seek a diagnosis from your local extension service rather than treating yellow leaves alone. ([ipm.ucanr.edu](https://ipm.ucanr.edu/home-and-landscape/houseplant-problems/))
Trim badly discolored leaves This week, use clean scissors to cut yellow or brown leaves near the base of each leaf stalk. An occasional aging leaf does not by itself mean the whole plant is failing. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Prevention

Use soil moisture—not a fixed weekly schedule—to decide when to water. ([extension.umd.edu](https://www.extension.umd.edu/resource/overwatered-indoor-plants))
Keep the mix moist but not soggy, and never leave the pot standing in runoff. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))
Inspect leaf undersides and new growth regularly for pests. ([ipm.ucanr.edu](https://ipm.ucanr.edu/home-and-landscape/houseplant-problems/))

When to worry

Act promptly if yellowing spreads with persistent wilting, soft stem bases or dark, mushy roots. These signs suggest more serious root or stem damage; yellowing alone cannot confirm an infectious disease. ([ipm.ucanr.edu](https://ipm.ucanr.edu/home-and-landscape/houseplant-problems/))

Safety

Peace lilies can harm people, cats and dogs if chewed: calcium oxalate crystals cause mouth irritation, drooling, vomiting or difficulty swallowing. Keep the plant and cut leaves away from children and pets. For human exposure, contact a doctor or US Poison Control at 1-800-222-1222. For suspected pet ingestion, contact a veterinarian or ASPCA Poison Control at 888-426-4435 promptly; a consultation fee may apply. ([poison.org](https://www.poison.org/articles/peace-lily-223))

Sharing your home with pets or small children? See which plants our sources call safe for cats, dogs and kids.

FAQ

Does yellowing always mean overwatering?

No. Excessive drying, unsuitable light, nutrient problems, pests and normal aging can also cause it. Check the soil and symptom pattern first. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))

How often should I water my peace lily?

Check about 1 inch into the mix and water when it feels somewhat dry there. The interval varies with conditions. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Should I cut off yellow leaves?

You can trim yellow or brown leaves near the base of their stalks, but also address the underlying cause. ([ask.extension.org](https://ask.extension.org/kb/faq.php?id=908402))

Should I fertilize it immediately?

Not just because leaves are yellow. Peace lilies need little fertilizer, and excess fertilizer can burn roots and leaf tips. ([hgic.clemson.edu](https://hgic.clemson.edu/factsheet/peace-lily/))

Sources

Report a problem with this page