Plant troubleshooting

Monstera yellow leaves: watering, light, roots, and next steps

A yellow Monstera leaf is a clue, not a diagnosis. Start with the basics: recent watering, drainage, light, temperature, roots, pests, and whether the yellowing is one old leaf or a pattern.

2 sources 6 min read Reviewed Jun 20, 2026

Source-linked plant care notes by Tendlet editors. Educational only; call a veterinarian if a pet chews a toxic plant.

Sources include UF/IFAS Monstera guidance and ASPCA plant-toxicity guidance for homes with pets.

UF/IFAS Monstera ASPCA toxicity

Use care history before changing everything at once.

At a glance

Check in this order

WaterWas the soil soggy, dry, or normal before the last watering?

DrainageMake sure the pot drains and the cachepot is not holding water.

LightBright filtered light is better than harsh direct sun.

RootsSoft, dark, or bad-smelling roots point to overwatering trouble.

PestsCheck leaf undersides, nodes, and new growth.

PetsMonstera is toxic to cats and dogs if chewed.

Change one thing at a time. If you move the plant, repot it, prune it, and change watering in one day, it becomes harder to know what actually helped.

Start with watering and drainage

UF/IFAS notes that Monstera is adapted to well-drained soils and is not tolerant of flooded or excessively wet soil conditions. It also warns that too much water too often can cause root rot. Indoors, that makes drainage the first thing to check.

If the potting mix is still wet, wait before watering again. If the plant sits inside a decorative pot, lift the nursery pot out and check whether water is pooled at the bottom. A beautiful cachepot can quietly become a swamp.

Check the light, not just the water

Monstera grows best under light shade or filtered sunlight, and intense sun exposure can scorch leaves. Indoors, that usually means bright indirect light rather than a dark corner or a hot windowpane.

If the plant has been in low light, soil may stay wet longer after each watering. If it has been in intense direct sun, yellowing can appear with pale or burned patches. Move gradually when possible.

When to inspect roots

Do not unpot a Monstera for every yellow leaf. One older leaf yellowing can be normal. Inspect roots when yellowing spreads, the soil smells sour, the pot stays wet, stems soften, or the plant declines after repeated overwatering.

Healthy roots are usually firm. Mushy, dark, or bad-smelling roots are a warning sign. Trim damaged roots with clean tools and repot into fresh, well-drained mix if rot is present.

Should you cut yellow Monstera leaves?

A fully yellow leaf will not turn green again. You can remove it with clean pruners, but do not strip the plant aggressively. If several leaves are yellowing at once, solve the underlying care problem first.

Wash your hands after pruning. ASPCA lists Monstera deliciosa as toxic to cats and dogs because of insoluble calcium oxalates, so keep cut leaves, sap, and pruning debris away from pets.

How Tendlet helps

Tendlet helps you see the pattern: watering dates, soil notes, light changes, repotting, pruning, pest checks, and photos over time. Yellow leaves get easier to understand when the care history is not scattered across memory and messages.