PlantRx

Monstera brown tips

By Karim DiabatePublished Updated How these guides are built

Brown tips on a monstera are rarely a disease. The tip is the tissue furthest from the roots, so it is the first thing the plant gives up when something small goes slightly wrong over and over. It is a record, not an emergency.

A healthy Monstera, photographed for reference
A healthy monstera for comparison. This is a reference photo, not a picture of the problem. Photo by Unknown author (CC BY-SA 3.0), via Wikimedia Commons.

What is specific to this plant

  • A mature monstera producing solid leaves with no splits or holes is short of light, not of fertiliser.
  • Aerial roots are normal and are not a sign of trouble. Do not cut them off; they anchor the plant as it climbs.
  • Monstera roots want air as much as water, which is why a dense peat-heavy mix causes trouble that the same watering in a chunky mix would not.

What it could be, and how to tell

These look alike in a photograph, so each one below lists what you would ALSO see if that is the cause. Work down the list and stop at the one where the other symptoms match too.

most common

1. The newest and largest leaf browning at its tip first

What else you would see

  • the tip of the most recent leaf browning while older smaller ones are clean
  • each leaf larger than the one before it
  • a long petiole carrying that leaf well away from the pot
  • mix that dries out fully between waterings
How to confirm it: Check whether the browning is on the biggest leaf rather than the oldest. A monstera makes each leaf larger than the last and holds it out on a long stalk, so its newest leaf is both the thirstiest and the furthest from the roots, and any shortfall in supply reaches that tip before anywhere else. Damage that tracks leaf size rather than leaf age is a supply problem, not age.

What to do

  1. Water more evenly so the pot does not swing between saturated and bone dry.
  2. Check the roots can actually supply the canopy, repotting if the pot is solid with root.
  3. Raise humidity, since the largest leaf loses water fastest.
common

2. Minerals and fluoride in tap water

What else you would see

  • damage confined to the very tips and outer edges, with a thin yellow band between the brown and the green
  • a white or yellowish crust on the surface of the mix or around the pot rim
  • the plant otherwise growing well, and still producing new leaves
How to confirm it: Tip-only damage on a plant that is otherwise thriving. Monstera is in the group that reacts to what is dissolved in tap water rather than to how much of it you give.

What to do

  1. Switch to filtered, distilled or rainwater.
  2. Flush the pot every few months: run a large volume of water slowly through it so accumulated salts leave through the drainage holes.
  3. Trim the damage at an angle with clean scissors, leaving a hairline of brown so you do not cut into living tissue and create a fresh brown edge.
common

3. Dry air

What else you would see

  • worse in winter once the heating is on
  • a radiator, a vent or a draught nearby
  • other plants in the same room showing crisp edges too
How to confirm it: Seasonal timing, and more than one plant in the room affected at once. That points at the room rather than at anything you did to this plant.

What to do

  1. Move it away from direct heat sources and draughts.
  2. Group plants together, or stand the pot on a tray of damp pebbles, so the air immediately around it is more humid.
less common

4. Fertiliser salt buildup

What else you would see

  • a white or yellowish crust on the mix or the rim of the pot
  • damage that got worse after a feeding routine started
  • many leaves affected at once rather than one
How to confirm it: Visible crust on the surface or the pot rim, together with a history of regular feeding.

What to do

  1. Flush the pot thoroughly with plain water to carry the salts out.
  2. Feed less often, at the dilution given on the label of the product you use.
  3. Repot into fresh mix if the crust is heavy.
less common

5. Inconsistent watering, or drying out too far

What else you would see

  • leaf edges dry, thin or crisp rather than limp
  • soil shrunk away from the side of the pot, and a pot that is light to lift
  • the whole plant flagging at once rather than one leaf at a time
How to confirm it: Dry soil pulled away from the pot wall, with foliage that improves noticeably within a day of a thorough soak. If a thorough watering changes nothing in twenty four hours, stop assuming thirst and check the roots.

What to do

  1. Water thoroughly until it runs freely from the drainage holes, rather than a splash at the surface.
  2. If the mix has gone water-repellent and the water runs straight through, stand the pot in a basin of water for half an hour to rewet it properly.
  3. Water on dryness rather than on a fixed day of the week, and this is how far it should dry: the top two to three inches.
uncommon

6. Overwatering, and the root rot that follows

What else you would see

  • yellowing that starts on the lowest, oldest leaves and works upward
  • stems soft or dark at the soil line, sometimes with a sour smell
  • soil or mix still wet several days after watering, when this much should have dried: the top two to three inches
  • small flies around the pot, which breed only in constantly wet soil
How to confirm it: Slide the plant out of its pot and look at the roots. Healthy ones are firm and pale tan. Brown, soft, or hollow when you press them means rot, and that changes what you do next completely.

What to do

  1. Stop watering and let it dry down this far: the top two to three inches.
  2. Check that the pot drains and empty any saucer or decorative outer pot it sits in. Water held out of sight keeps the mix wet whatever you change above it, and it stays invisible until you lift the pot.
  3. If the roots are soft and brown, trim them back to firm tissue with a blade sterilised first and repot into fresh chunky, airy aroid mix.

Common questions

Should I cut the brown tips off my monstera?

For appearance, yes. Cut at an angle following the natural shape of the leaf and leave a hairline of brown behind, because cutting into living tissue simply creates a fresh brown edge.

Do brown tips mean too much water or too little?

Either can produce them, which is why the tips alone are not enough to diagnose from. Check the mix and the roots. Overwatering usually brings yellowing and limpness with it; underwatering brings crisping that runs further down the leaf.

Does tap water really cause this?

For some plants, yes, and reliably so. Fluoride and dissolved salts accumulate in the leaf tips faster than the plant can cope with. The tell is that the rest of the plant looks perfectly healthy.

Is a monstera poisonous to cats, dogs or children?

Monstera contains calcium oxalate crystals and is widely listed as harmful to pets and children if chewed. We do not tell you that any plant is safe. If a pet or a child may have chewed any part of one, contact a vet, or Poison Control on 1-800-222-1222 in the US, immediately rather than waiting to see what happens.

Before you act on any of this

This is general plant care guidance for a plant, not advice about people or animals. We never tell you whether a plant is safe to eat or touch, and we never tell you a plant is safe for a child or a pet. If a child or animal may have eaten any part of a plant, contact Poison Control (US 1-800-222-1222) or a vet immediately rather than reading further.

Treatment advice here is deliberately category level. We do not give product names, mixing ratios or application intervals. Whatever the label on the product in your hand says is the instruction that counts, and following it is your responsibility.

Where this comes from

The general horticultural facts behind this differential come from published university extension and Royal Horticultural Society guidance. What is specific to this plant, and the order the causes are ranked in, is ours, and the methodology page says where that reasoning stops being reliable.

Other monstera problems

Not sure which one it is?

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