Why are my Anthurium leaves turning yellow?

Anthurium leaves most often turn yellow from overwatering. These plants are epiphytic aroids with fleshy roots that want air, so soggy soil starves the roots of oxygen and they begin to rot, showing first as soft, yellowing lower leaves. Natural aging of the oldest leaves, too much direct sun, and less often underwatering can also cause it. Check the soil moisture first, then ease off watering and improve drainage.

Most likely cause

Overwatering is the top cause of yellow Anthurium leaves. Anthuriums grow as epiphytes in the wild, clinging to trees with fleshy roots that expect plenty of air, so they want a chunky, airy mix that dries between waterings and they hate wet feet. When the mix stays saturated the roots suffocate and rot, and they can no longer feed the leaves.

You can confirm it by the pattern. Overwatering yellows the lowest, oldest leaves first, the affected leaves feel soft rather than crispy, the soil stays wet for days, and there is often no drainage or a full saucer left under the pot. Let the mix dry to the top inch and the yellowing should stop spreading, with healthy new growth following within 2 to 4 weeks.

Other causes

These rank below overwatering but often overlap with it.

Natural aging. A single old lower leaf yellowing slowly is normal; only the bottommost leaf is affected while the rest, including new growth, look healthy.
Too much direct sun. Harsh midday rays scorch the foliage; you see bleached, pale yellow patches on the leaves facing the window rather than even yellowing.
Underwatering. Prolonged drought stresses the roots; the mix is bone dry, it has pulled away from the pot, and yellowing comes with crispy brown edges.
Fertilizer salt buildup. Too much feed leaves crusty salts in the mix that burn the roots; lower leaves yellow with brown, scorched tips and a white crust on the soil surface.

How to fix it

Check the soil. Feel the top inch of mix. If it is wet, hold off watering until it dries out.
Improve drainage. Repot into a chunky aroid mix with bark, perlite, and a little coco coir, make sure the pot drains freely, and empty any saucer so roots never sit in water.
Water when the top inch is dry. Use room-temperature water and soak until it drains from the bottom, then let the surface dry again before the next round.
Remove spent leaves. Cut fully yellow leaves at the base of the stalk with clean scissors.
Give bright indirect light. Set it near an east window or a few feet back from a brighter one, out of harsh direct sun.
Feed lightly during growth. In spring and summer feed at quarter strength every few weeks, and flush the pot occasionally to clear salt buildup.
Keep it warm. Hold the plant between 65 and 80F and away from cold drafts, heaters, and vents.

Cause	Tell-tale sign	Fix
Overwatering	Soft lower leaves, wet soil for days	Let top inch dry, improve drainage
Natural aging	Single oldest leaf only	Trim it, no action needed
Too much direct sun	Bleached, pale patches on exposed leaves	Move to bright indirect light
Underwatering	Bone-dry mix, crispy edges	Water thoroughly, keep lightly moist
Fertilizer salt buildup	White crust, scorched tips	Feed at quarter strength, flush soil

Frequently asked questions

Will yellow Anthurium leaves turn green again?

No. Once an Anthurium leaf yellows the chlorophyll is gone and it will not turn green again. Correct the underlying cause first, then trim the fully yellow leaf at the base so the plant stops spending energy on it and pushes fresh growth instead.

Is it normal for the bottom Anthurium leaves to turn yellow?

Yes. An occasional oldest lower leaf yellowing and dropping is normal aging as the plant grows. Several leaves yellowing at once, or new leaves yellowing, points to overwatering or a light or feeding problem rather than simple age.

Can overwatering cause yellow Anthurium leaves?

Yes, and it is the most common cause. Anthuriums are epiphytic aroids with fleshy roots that need air, so soggy soil starves them of oxygen and they begin to rot. This shows as soft, yellowing lower leaves and stalled growth. Let the top inch of mix dry before watering again.

Why are my Anthurium leaves yellow but the soil is dry?

Dry soil with yellowing usually means underwatering or roots too damaged to take up water. Water thoroughly until it drains from the bottom, then keep the mix lightly moist. If the soil has pulled away from the pot, soak the root ball to rehydrate it fully.

Should I cut off yellow Anthurium leaves?

Yes, once a leaf is mostly or fully yellow. Cut it at the base of the stalk with clean scissors. This tidies the plant and redirects energy to healthy leaves, but always fix the watering or light cause first or more leaves will keep yellowing.

How do I stop my Anthurium leaves from turning yellow?

Water only when the top inch of mix is dry, use a chunky airy aroid mix, and give the plant bright indirect light. Steady moisture, free drainage, and warm stable conditions between 65 and 80F prevent most Anthurium yellowing.