Monstera’s leaves are turning yellow: Causes & Fix

Use the Yellowing Pattern to Narrow the Cause

Monstera deliciosa naturally sheds an occasional older leaf as it replaces foliage. Normal aging usually affects the lowest, smallest leaf on one vine. When two or more leaves begin changing color in a short period, or yellowing moves upward, natural turnover is less convincing.

These symptom combinations provide a better starting point:

• Soft yellow lower leaves and mix that stays damp for many days: excess moisture and declining roots are likely.
• Limp leaves, a very light pot, and dry or crispy margins: the root ball has probably dried too far.
• Overall pale growth, long petioles, and small new leaves with few fenestrations: the plant may need more usable light.
• Bleached yellow areas that become tan or crisp on the window-facing side: direct sun may have scorched foliage that was not acclimated to it.
• Fine yellow speckling, webbing, sticky residue, or cottony material: inspect for spider mites, scale, or mealybugs.

Wet Roots Are the First Place to Look

Monstera roots need air between waterings. A dense mix, an oversized pot, blocked drainage holes, or water trapped inside a decorative pot can keep the root ball saturated. Roots deprived of oxygen stop functioning efficiently and may begin to rot. The leaves then yellow and sometimes wilt even though the plant is surrounded by moisture.

Push a finger or wooden skewer 2–3 inches (5–7.5 cm) into the mix and lift the container to judge its weight. Check the bottom of the cachepot rather than looking only at the dry-looking surface. If the root zone is still wet, do not add water to “perk up” yellow leaves. Empty all runoff and let the mix dry in bright, indirect light.

If the pot remains wet for an unusually long time, yellowing continues, or the stem base smells sour, slide out the root ball. Healthy Monstera roots are firm and light-colored; rotting roots are brown or black, soft, and may lose their outer layer when touched.

Remove badly decayed roots with a disinfected blade, discard the old mix, and repot in a clean container with unobstructed drainage holes. Use an open houseplant mix that drains readily while retaining some moisture. Bark and perlite can improve structure in a heavy peat-based mix. Choose a pot only slightly wider than the remaining root ball. Extra soil around damaged roots stays wet longer and raises the risk of another decline.

Correct the Watering Routine Without Using a Calendar

Once the roots are healthy, water only after the upper portion of the mix has dried. For many established Monsteras, this means roughly the top quarter to one-third of the pot, not just the dusty surface. Apply room-temperature water until excess drains freely, then empty the saucer or cover pot.

The interval changes with light, season, pot size, and temperature. A large plant in bright summer light may dry quickly, while the same plant can use far less water in a cool, dim winter room. Use the condition of the mix, not a fixed weekday, to decide when to water.

If the root ball is genuinely dry and has pulled away from the pot, water slowly in several passes. A severely dried peat mix may shed water down the sides; soak the nursery pot briefly, then remove it and allow it to drain completely. The leaves may regain firmness, but yellow tissue will not become green again.

Give the Plant Enough Light to Use Water

Monstera can survive in medium light, but a dark corner reduces photosynthesis and slows the rate at which the potting mix dries. This creates a common combination: pale or yellow lower leaves, weak new growth, and soil that remains moist long after watering.

Move the plant closer to an east- or west-facing window, or into a brighter room where it receives strong filtered light. Make the change gradually. Large Monstera leaves can scorch when a shade-grown plant is suddenly placed against hot glass or exposed to intense midday sun. A grow light can supplement a room with inadequate daylight.

Keep the plant warm and away from cold drafts. Temperatures around 65–77°F (18–25°C) suit indoor growth. Cold slows root activity, so a watering routine that was safe in summer may leave the mix wet during winter.

Check Fertilizer, Pot Space, and Pests Only After Moisture

A nutrient shortage can cause steady paleness or yellowing during active growth, particularly when an established plant has occupied the same mix for a long time. However, applying fertilizer to damaged roots can make matters worse. First confirm that moisture, drainage, and light are appropriate. Then feed a healthy, actively growing Monstera with a balanced houseplant fertilizer at the label rate.

White crust on the mix or pot rim, browned tips, and yellowing after frequent feeding suggest soluble-salt buildup rather than hunger. Flush the mix thoroughly with fresh water and let it drain, or replace badly degraded material. Never increase the dose to compensate for slow winter growth.

Finally, inspect both sides of the broad leaves, the petiole joints, and the stem. Spider mites leave fine stippling and sometimes webbing. Mealybugs form white waxy clusters, while scale resembles fixed brown bumps and may leave sticky honeydew. Isolate an infested plant, wipe or rinse off accessible pests, and use a product labeled for that pest on houseplants, following all directions. Repeat inspections because one treatment may not reach every life stage.

How to Help a Yellowing Monstera Recover

1. Map the affected leaves. One old bottom leaf is different from yellowing that is spreading across several vines.
2. Test moisture below the surface. Drain a wet pot or thoroughly rehydrate a truly dry root ball.
3. Inspect roots when wet-soil symptoms persist. Remove decay and reduce the pot size if necessary.
4. Improve light gradually. Give the plant bright, filtered light without abruptly exposing it to harsh sun.
5. Delay fertilizer until roots are working. Feed only during active, healthy growth and flush accumulated salts when needed.
6. Examine leaves for pests. Treat a confirmed infestation rather than spraying a clean plant.

Once a leaf is mostly yellow, remove it with clean pruners by cutting the petiole close to the main stem without damaging the node. There is no need to remove a leaf that still has a substantial green area unless it is diseased or heavily infested.

Measure recovery by the plant's next behavior. New yellowing should slow, the mix should begin drying at a predictable rate, and fresh leaves should emerge firm and green. Existing yellow patches will remain, so the appearance of old foliage is less useful than the condition of the roots and new growth.