Swiss cheese plant (Monstera deliciosa) care

Aroids · easy to keep

Last updated 27 October 2026

Swiss cheese plant (Monstera deliciosa) wants bright indirect light; an hour or two of early sun is fine, midday sun is not. Water it weekly. Water when the top 5 cm of mix is dry, then water until it runs out of the bottom. Monsteras would rather be a day late than a day early. Pot it in a chunky aroid mix — bark, perlite and coir, something water runs straight through. A balanced liquid feed at half strength, every second or third watering in spring and summer, and repot once a year. Humidity: happy at normal room humidity; better above 50%. Toxic to cats, dogs and people if chewed — the sap carries insoluble calcium oxalate crystals, which burn the mouth and throat.

The plant that put holes in a million living rooms. A monstera deliciosa is a climbing aroid from the rainforests of southern Mexico and Central America, where it hauls itself up tree trunks and grows leaves the size of a bin lid. The famous splits and holes — fenestrations — only appear as the plant matures, and only if it has enough light and something to climb; a young one in a dark corner makes plain heart-shaped leaves and stays that way.

Quick facts

Water: Water weekly. Water when the top 5 cm of mix is dry, then water until it runs out of the bottom. Monsteras would rather be a day late than a day early.
Light: Bright indirect light; an hour or two of early sun is fine, midday sun is not.
Humidity: Happy at normal room humidity; better above 50%.
Soil: A chunky aroid mix — bark, perlite and coir, something water runs straight through.
Feeding: A balanced liquid feed at half strength, every second or third watering in spring and summer.
Repotting: Repot once a year.
Toxic to pets: Toxic to cats, dogs and people if chewed — the sap carries insoluble calcium oxalate crystals, which burn the mouth and throat. Keep it off the floor if anything in the house tastes its way through life. The ASPCA lists Swiss Cheese Plant (Monstera deliciosa) as toxic to cats and dogs (checked 26 October 2026).
Difficulty: Easy.
Mature size: 2–3 m tall indoors with a pole, leaves up to 60 cm across.
Native to: Southern Mexico to Panama.

Watering a Swiss cheese plant

Water weekly. Water when the top 5 cm of mix is dry, then water until it runs out of the bottom. Monsteras would rather be a day late than a day early.

That cadence is the one PlantParlour sets for this species when you name it, and it is deliberately on the cautious side — a plant that asks a day early is safer than one that asks a day late. Log each watering and the reminder moves with the plant rather than with the calendar.

Light

Bright indirect light, which in practice means a metre or two back from an east or west window, or right up against a north one. Monsteras will survive in low light and simply stop earning their name: the new leaves come out smaller and solid, with no splits. Direct midday sun bleaches them to a pale khaki.

Humidity and temperature

Happy at normal room humidity; better above 50%. Central heating in winter is what turns a comfortable room into a dry one, and it is the usual reason an established plant suddenly browns at the edges or picks up spider mites.

Soil and potting

Monsteras are climbers that root into bark in the wild, not into soil. A peat-only compost holds water against the roots and is the usual reason a healthy plant turns yellow. Cut potting soil half-and-half with orchid bark and perlite, or buy a ready-made aroid mix.

Feeding

A balanced liquid feed at half strength, every second or third watering in spring and summer. Stop feeding in autumn and start again when you see new growth in spring — feeding a plant that isn't growing just builds up salts in the pot.

Repotting

Repot once a year. Repot when roots come out of the drainage holes, in spring. Go up one pot size only — a monstera in too big a pot sits wet. Give it a moss pole at the same time: aerial roots that find something to climb produce noticeably larger, better-fenestrated leaves.

Common problems

Yellow leaves, usually the oldest ones first
Overwatering, or a mix that holds water. The roots have been wet long enough to start dying back.

Fix: Let it dry out further between waterings, and repot into something chunkier if the mix stays soggy for days.

Yellow leaves: how to read it on any plant
New leaves come out small and with no splits
Not enough light, or nothing to climb.

Fix: Move it closer to the window and give it a moss pole. Fenestration is a maturity signal; the plant withholds it when conditions say stay small.
Brown crispy edges
Dry air, or a build-up of salts from tap water and fertiliser.

Fix: Raise humidity, and flush the pot thoroughly with plain water every few months.

Brown tips and edges: how to read it on any plant
Fine webbing between stems, leaves stippled pale
Spider mites, which arrive in dry warm air.

Fix: Shower the whole plant, then treat every five days for three weeks — one treatment never gets the eggs.

Spider mites: how to read it on any plant

Propagation

Cut just below a node — the brown bump where a leaf and an aerial root meet. A cutting with a node and one leaf roots in water in three to six weeks, or straight into damp sphagnum. A cutting without a node will never root, however long you wait.

A cutting taken in PlantParlour keeps its link to the plant it came from, so a propagation years later still traces back to the mother plant — which is the point if you ever sell or trade it.

Toxicity and safety

The ASPCA lists Swiss Cheese Plant (Monstera deliciosa) as toxic to cats and dogs (checked 26 October 2026).

If your pet has eaten a plant, call your vet, the ASPCA Animal Poison Control Center on (888) 426-4435, or the Pet Poison Helpline on (855) 764-7661. Both are open around the clock and may charge a consultation fee. Take the plant or its label with you.

This is general information, not veterinary advice. We don't test plants: what we say about toxicity follows the ASPCA's published plant list as it stood on 26 October 2026, and that list can change. "Non-toxic" means not poisonous — a pet that eats enough of any plant can still vomit, and fertiliser, pesticide or leaf shine on a plant can harm it. It also only helps if the plant is what you think it is. It covers cats and dogs only; ask your vet about rabbits, birds, reptiles or anything else, and a doctor about children. Read our terms.

Every houseplant in the library the ASPCA lists as non-toxic to cats and dogs

Named cultivars and variegations

Monstera deliciosa is sold under several cultivar names. Care is the same unless noted; variegated forms carry less chlorophyll, so they grow more slowly and want more light than the plain species.

Cultivar	Also sold as	Water
'Thai Constellation'	Thai Constellation, Thai Con	weekly
'Albo Variegata'	Monstera Albo, Albo monstera	weekly
'Aurea'	Monstera Aurea, Marmorata	weekly
'Mint'	Monstera Mint	weekly
'Borsigiana'	Monstera Borsigiana	weekly

Where the variegated forms are grown differently from the plain Monstera deliciosa:

'Thai Constellation'

Cream speckles fixed by tissue culture, so the pattern is stable: it rarely reverts or throws an all-white leaf. Every leaf still carries less chlorophyll than a plain deliciosa's, so it grows more slowly. Difficulty: needs attention.

Light: Brighter than a plain monstera: close to an east window, or a little back from a south or west one. The cream areas scorch in direct midday sun; in too little light it all but stops, and new leaves come smaller with fewer splits.

Water: Water when the top 5 cm of mix is dry, and lean towards dry rather than wet: it uses water more slowly than a plain deliciosa, and wet roots rot faster. A chunky, airy mix helps.

Humidity: Above 50%, ideally 60%. The cream patches are the first part of a leaf to brown in dry air.

Watch for: Brown, dry patches on the cream parts of the leaves. The cream tissue is the weakest part of the leaf and fails first: sun through glass, dry air, or a plant shedding what it can't support. Move it out of direct sun and raise the humidity. The damage doesn't recover; trim it off with clean scissors once it covers much of a leaf.

'Albo Variegata'

White variegation from an unstable mutation, kept going from cuttings: each leaf can come out anywhere from solid green to entirely white, and a stem can drift either way. Difficulty: fussy.

Light: As much bright indirect light as you can give it without direct midday sun. The more white a plant carries, the more light it needs just to hold its own.

Water: Water when the top 5 cm of mix is dry. A heavily white plant drinks less than a green one of the same size, so check the pot rather than the calendar.

Humidity: Above 60%. White tissue browns and crisps at the edges in dry air long before the green does.

Watch for: A new leaf that is entirely white, or nearly. White tissue has no chlorophyll, so the leaf cannot feed itself; it will brown and die early, and it means the stem is drifting towards white. Leave the leaf on while it lasts. If the next leaves are mostly white too, cut the stem back to a node below a leaf with a good share of green.

Watch for: New leaves coming in plain green. The stem is reverting: green tissue grows faster than the variegation, and a stem that has made one plain leaf will usually go on making them. Give it more light, and cut the stem back to a node below the last leaf with good variegation; growth from that node carries the pattern on.

'Aurea'

Yellow-to-lime variegation from an unstable mutation, like Albo's but yellow. Yellow tissue keeps a little chlorophyll, so it is slightly less demanding than white. Difficulty: needs attention.

Light: Bright indirect light. The yellow sectors scorch in direct sun and fade towards cream in a dim spot.

Humidity: Above 50%, ideally 60%.

Watch for: A new leaf that is entirely yellow, or nearly. Yellow tissue has too little chlorophyll to feed a whole leaf; it will brown and die early, and it means the stem is drifting towards yellow. Leave the leaf on while it lasts. If the next leaves are mostly yellow too, cut the stem back to a node below a leaf with a good share of green.

'Mint'

Pale mint-green and white marbling over the whole leaf, from an unstable mutation. Many leaves carry more pale tissue than dark green. Difficulty: fussy.

Light: As much bright indirect light as you can give it without direct midday sun; the pale tissue burns quickly and feeds very little.

Water: Water when the top 5 cm of mix is dry. It grows slowly and drinks less than a plain deliciosa, so check the pot rather than the calendar.

Humidity: Above 60%. White tissue browns and crisps at the edges in dry air long before the green does.

Watch for: Brown, dry patches on the pale parts of the leaves. The pale tissue is the weakest part of the leaf and fails first: sun through glass, dry air, or a plant shedding what it can't support. Move it out of direct sun and raise the humidity. The damage doesn't recover; trim it off with clean scissors once it covers much of a leaf.

Questions people ask

Why doesn't my monstera have holes?

Because it is still juvenile, or it hasn't got enough light and nothing to climb. Fenestration is a maturity signal: a monstera makes split leaves when conditions tell it that it has reached the canopy. Give it bright indirect light and a moss pole, and the leaf after next will usually show the difference.

Should I cut off my monstera's aerial roots?

No. They are how the plant anchors and feeds itself as it climbs. Tuck them into a moss pole or down into the pot; cutting them off does no lasting harm but throws away the thing that produces the biggest leaves.

Is monstera fruit edible?

The fruit of Monstera deliciosa is edible when fully ripe — that is the 'deliciosa' — but it almost never fruits indoors, and an unripe one is loaded with the same oxalate crystals as the leaves and will burn your mouth badly.

How often should you water a Swiss cheese plant?

Water weekly as a starting point — that is the cadence PlantParlour sets for Monstera deliciosa. Water when the top 5 cm of mix is dry, then water until it runs out of the bottom. Monsteras would rather be a day late than a day early. Light, pot size and the time of year all move that number, so treat it as a reminder to go and check rather than a rule.

How much light does a Swiss cheese plant need?

Is Swiss cheese plant toxic to cats and dogs?

Toxic to cats, dogs and people if chewed — the sap carries insoluble calcium oxalate crystals, which burn the mouth and throat. Keep it off the floor if anything in the house tastes its way through life. The ASPCA lists Swiss Cheese Plant (Monstera deliciosa) as toxic to cats and dogs (checked 26 October 2026). If a pet has eaten part of a plant, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 straight away.

How do you propagate a Swiss cheese plant?

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Keep this plant's record

PlantParlour gives your Swiss cheese plant its own page: a photo timeline, reminders set to the cadences above, and every watering, feed, repot and problem written down. Trade or sell it and the whole history goes with it.

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