Monstera Plant Care: Light, Water and Leaf Splits

Monstera wants bright but filtered light, a thorough watering whenever the top quarter to third of the mix has dried, and something to climb. NC State Extension gives the light requirement as moderate brightness without direct sunlight, or dappled sun to partial shade at two to six hours a day, and the watering instruction as water thoroughly, then allow the top quarter to one-third part to dry between waterings.

Temperature is the easy part: NC State lists an average warm range of 60 to 85 F, which is ordinary room temperature in most homes.

The part people skip is support. NC State describes Monstera deliciosa as a climbing vine that requires sturdy support, reaching six to eight feet indoors. Without a pole it sprawls, and the leaves stay small and solid.

It is toxic to cats and dogs - see the pet safety page.

The splits and holes are a sign of maturity, not of care. NC State describes the mature leaf as large, pinnately lobed and perforated, broadly ovate to heart-shaped, glossy and leathery, exceeding six inches in length and width, with a visible junction between blade and petiole on mature leaves. Young plants produce plain heart-shaped leaves with no holes at all.

What moves the plant along is climbing. NC State classes it as a climbing vine that needs sturdy support and puts its growth rate at rapid; in the wild it reaches up to seventy feet. A moss pole or plank gives the aerial roots something to grip.

Light matters too. NC State notes variegated cultivars need more light than the plain dark green ones, which is worth knowing before you buy an expensive variegated plant for a dim corner.

NC State's watering rule is specific enough to follow: water thoroughly, then allow the top quarter to one-third of the mix to dry before watering again. That is wetter than a snake plant and drier than a peace lily.

For soil, NC State lists high organic matter, loam or silt based, neutral pH from 6.0 to 8.0, and good drainage with moist conditions. An ordinary peat or coir based houseplant mix with added bark or perlite fits.

On humidity, NC State says monstera prefers high humidity and mentions humidifiers or wet pebble trays. Penn State Extension's testing of those methods is worth knowing: misting raises humidity only until the water evaporates, and pebble trays let the moisture diffuse into the room. Grouping plants, a glass cloche or a humidifier are the methods Penn State says actually work.

Clemson Extension's indoor plant guidance covers feeding: a balanced 20-20-20 formula for foliage plants, applied either every two to three months at label strength, diluted to a tenth strength at every watering through the growing season, or at every seventh watering. Clemson also says not to fertilise during winter dormancy, and that white crusty deposits on the soil or pot rim mean salt build-up from over-fertilising.

Repot when roots fill the container or grow out of the drainage holes, into a pot only slightly larger.

Pruning is mainly about size. NC State rates the plant medium maintenance with a rapid growth rate, so a monstera in a bright room will outgrow its corner. Cut a stem above a node; the cutting can be rooted, since NC State lists stem cuttings and layering as the propagation methods.

• Small, solid leaves with no splits. Immaturity plus no support. Give the plant a pole to climb and brighter filtered light.
• Yellow leaves. Clemson's houseplant disorder sheet puts general yellowing down to insufficient light, inadequate fertiliser, pests or, most often, overwatering; check drainage, and if most roots are dark and soft the plant is past saving.
• Brown crisp edges and tips. Clemson attributes brown tips and edges to hot dry air, improper watering, insect feeding and salt accumulation, and recommends drenching the pot periodically to leach salts out.
• Scale insects. NC State records fern scale and otherwise reports no significant problems for this species.
• Aerial roots everywhere. Normal for a climber. Tuck them into the pole or the pot rather than cutting them all off.

Monstera is toxic to cats, dogs, horses and people. NC State rates the severity low but is specific about what happens: intense burning of the mouth, tongue and throat, and possibly nausea, vomiting, difficulty swallowing, drooling and diarrhoea. The cause is needle-like calcium oxalate crystals, and all parts of the plant are listed as toxic. Contact dermatitis is possible from handling.

The ripe fruit is edible and NC State likens the taste to a cross between banana and pineapple, but it also notes the plant rarely flowers or fruits indoors. Unripe fruit contains the same crystals. Do not eat fruit from a houseplant.

If a pet has chewed a leaf, call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435; for a person, Poison Control on 1-800-222-1222. Our monstera pet safety page has the listing.

• Do not water on a schedule. Here She Grows checks by pushing a finger to the second knuckle and waters only when the mix is dry at that depth.
• Do not leave it standing in water. The same grower empties drainage trays straight away, because standing water invites root rot and fungus gnats.
• Do not jump to a much bigger pot. Here She Grows moves up only when roots come through the drainage holes, and by no more than 2 inches in diameter.
• Do not use leaf shine. Clemson HGIC warns that the waxy residue can interfere with the leaf's gas exchange; wipe leaves with a damp soft cloth instead.
• Do not park a young plant in strong summer sun. Here She Grows pulled its plant back from the window in summer when it was smaller.
• Do not eat the fruit. Indoor plants rarely fruit, but Wikipedia notes the fruit takes more than a year to ripen and that unripe fruit contains calcium oxalate crystals that irritate the mouth and throat. If a child or pet has chewed any part of the plant, call poison control, a doctor or your vet.

The long brown roots that grow from the stem are normal. Wikipedia describes monstera as a hemiepiphyte: in the wild it climbs trees with its aerial roots while it also roots in the ground. Indoors, Here She Grows says you can guide them into the soil, where they take up nutrients and help anchor the plant, or remove them if you do not like the look. Guiding them onto a support is the third option and helps the plant climb, which is what brings on the larger, split leaves described above.

Bright indirect light, warmth, a watering routine based on the soil, and something to lean on. Wikipedia gives 20 to 30 C as the indoor temperature range and bright indirect light; Here She Grows grows its plant in a northwest-facing window and turns the pot a quarter turn from time to time so growth stays even.

For support, Here She Grows skips the moss pole and uses four one-inch bamboo stakes pushed to the bottom of the pot, tied in with plant tape, and moves large plants into heavy ceramic pots so they do not tip. Its watering pattern for that plant is roughly twice a month from April to September and as little as once a month in winter, which is a useful guide but not a rule for your room.

If you wonder why the leaves split at all, Wikipedia notes there is no settled answer; the proposed explanations are better water capture, less wind damage and defence against leaf-eating animals.

The sections on what not to do, aerial roots and keeping a monstera happy were added on 2026-09-25. Research and drafting were done with the help of AI, and every figure was checked line by line against the sources listed on this page.

Yes, if you have the space and a bright room. NC State lists it as a widely grown indoor specimen plant, rates its maintenance as medium and its growth rate as rapid, and gives 6 to 8 feet as the usual indoor height against 70 feet in its native forests from Mexico to Panama. Gardenstead notes wild leaves can reach one metre across. Plan for that: a monstera needs a sturdy pole or support as it matures (NC State), and a young plant in a 6-inch pot will not stay desk-sized.

Two things make it less suitable for some homes: it is toxic to cats, dogs and horses (NC State rates it low severity), and its sap can cause contact dermatitis. If either matters to you, see our monstera and pets entry or compare it with the non-toxic options in house plants safe for cats.

Not hard. NC State says it has no significant problems when grown properly, and names fern scale as the pest to watch for. Most monstera deaths indoors come from one of three things: soil that never dries (water only once the top quarter to third has dried, per NC State), a dark corner (it wants moderate brightness without direct sun, and variegated forms need more light), or cold (NC State gives 60 to 85 F). Gardenstead adds a practical depth check: let the soil dry to your first knuckle before watering. A plant that is alive but has small leaves with no splits is not failing; it needs more light and something to climb.

NC State says monstera rarely flowers or fruits as a houseplant. It notes that only the ripe fruit is used as food, in drinks, ice cream or fresh, but that unripe fruit contains needle-like calcium oxalate crystals that burn the mouth and throat, and that some people react to the ripe fruit as well. Gardenstead notes the fruit takes close to a year to ripen, so ripeness is hard to judge by eye. Do not eat fruit from a houseplant or taste it to test it. If someone has eaten any part of a monstera and has mouth or throat pain, call Poison Control (1-800-222-1222 in the US); for a pet, call your vet.

Cheese plant care depends first on which plant the label means, because two monsteras share the name.

• Monstera deliciosa, the large plant this guide covers, whose leaves split right to the edge as they mature. Patch Plants, a UK plant shop, lists it first, as the classic Swiss cheese plant.
• Monstera adansonii, which NC State Extension lists under the common names Swiss cheese plant, cheese plant, five hole plant and Adanson's monstera. Its heart-shaped leaves have oval holes, and Nouveau Raw points out that, unlike deliciosa, the holes do not open out through the leaf edge. NC State describes it as a smaller, faster-growing vine, 3 to 8 feet tall and 1 to 3 feet wide indoors with support.

The quickest check: if the holes break through the edge of the leaf, it is deliciosa; if they are enclosed windows in a thinner leaf, it is adansonii. PlantLens can also tell them apart from a photo.

Care is close to deliciosa, with a few differences:

• Light. Bright indirect light; NC State warns direct sun scorches the leaves. Nouveau Raw notes that in too little light new leaves come in with brown edges and do not open fully.
• Water. Nouveau Raw waters every one to two weeks, letting the soil dry between waterings, and less in winter.
• Warmth and humidity. Nouveau Raw gives 64 to 81 F; NC State says to avoid temperatures below 50 F and describes it as liking warm, humid conditions. Brown tips with yellow halos point to dry air (Nouveau Raw).
• Support. It is a vine and needs a pole or trellis to climb, or it can trail from a hanging pot.
• Propagation. Nouveau Raw cuts a piece at least 4 inches long below a node, stands it in water with the node submerged, changes the water weekly, and reports roots in two to three weeks.

Both monsteras contain calcium oxalate crystals and are toxic to pets; NC State lists mouth and throat inflammation if eaten and skin irritation from the sap.

Yes, when it is too big or too sparse, and it will not harm the plant. Nouveau Raw's advice for adansonii applies to both: use clean, sterile scissors, remove yellow or dying leaves, and cut stems between a leaf and the stem to encourage bushier growth; the pieces can be rooted. For deliciosa, cut a stem just above a node, as covered in the pruning section above.

Aerial roots are a separate question. Patch Plants says the white aerial roots are natural and can be trimmed safely, though tucking them into a pole helps a climbing plant.

They need a sturdy pot, not an oversized one. Patch Plants recommends a sturdy pot with drainage holes and repotting in spring when roots start to poke out of the nursery pot. Go up only one size at a time: a much larger pot holds wet soil around a small root ball, and overwatering is what causes yellow leaves and root rot (Patch Plants). What a big deliciosa does need is weight and a pole, because a tall climber on a moss pole tips over a light pot.

In a bright room where it gets filtered light but no direct sun on the leaves, with space to grow and away from heating vents. NC State, quoted above, asks for moderate brightness without direct sunlight; Greenhouse Studio's guide says indirect, filtered light.

Two things are easy to miss:

• The sun moves. Greenhouse Studio's author found her monstera's leaves yellowing in autumn and winter, when the low, slanted sun reached the plant through a window that had been safe in summer, when the sun was overhead. Check a spot again in October, not just when you first place the plant.
• Winter heating. Greenhouse Studio warns against positions near heater vents, and says brown leaf edges mean the air is too dry.

Plan for size, too. Greenhouse Studio notes a monstera can grow large and take up a lot of space: size up the pot for more growth and bigger leaves, or keep it in a smaller pot and prune it. Greenhouse Studio also suggests displaying pruned leaves in a vase.

Greenhouse Studio adds two habits not covered above. First, water the support pole as well as the soil, so the aerial roots that grip it stay healthy. Second, now and then stand the plant in a shower or sink and run water over it, which cleans the leaves and waters the pot in one go. Its own plant needs water about once a week, and only once the soil has started to dry; it says overwatering does more harm than underwatering.