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Plant guideMonstera deliciosa care: the complete guide
Guidance verified against Penn State Extension, University of Minnesota Extension, the Royal Horticultural Society and the ASPCA on 21 August 2026. Sources linked below.
Monstera deliciosa wants bright, indirect light, water when the top 1 to 2 inches of soil have dried out (usually about once a week), humidity above 50%, and a well-draining pot. It prefers warm rooms between 15 and 29°C (60 to 85°F), feeds every two weeks in the growing season, and is mildly toxic to cats and dogs, so keep it out of reach of curious pets.
| Attribute | What Monstera deliciosa needs |
|---|---|
| Light | Bright, indirect light. Direct hot afternoon sun through an unshaded south-facing window can scorch the leaves |
| Water | When the top 1 to 2 inches of soil are dry, roughly weekly; check the soil rather than the calendar |
| Humidity | Above 50% where possible; a nearby humidifier helps in dry rooms |
| Soil / pot | Loam-based, well-draining mix in a pot with drainage holes; dislikes soggy roots |
| Fertiliser | Balanced liquid feed every two weeks in the growing season, monthly through winter |
| Temperature | 15 to 29°C (60 to 85°F); avoid cold draughts and below 13°C |
| Toxicity | Mildly toxic to cats and dogs (ASPCA); causes oral irritation if chewed |
How much light does a Monstera deliciosa need?
Monstera deliciosa needs bright, indirect light to grow well and develop its signature split leaves. An east or west-facing window suits it, or a spot two to four feet back from an unshaded south-facing window. Direct, hot afternoon sun through glass can scorch the leaves, so filter it with a sheer curtain if that is the only bright spot available. In a darker room, a full-spectrum grow light running eight to ten hours a day is a reasonable substitute, though growth and fenestration will be slower than in strong natural light.
How often should you water a Monstera deliciosa?
Water thoroughly when the top 1 to 2 inches of soil are dry, which for most indoor Monsteras works out to about once a week, according to Penn State Extension. Water more often in summer, when bright light and active growth dry the soil faster, and less in winter, when growth slows. Always check the soil with a finger before watering rather than following a fixed schedule: overwatering, not underwatering, is the more common cause of a struggling Monstera, and consistently wet soil raises the risk of root rot.
What humidity and temperature does a Monstera prefer?
Monstera deliciosa prefers humidity above 50% and a warm room between 15 and 29°C (60 to 85°F), according to Penn State Extension. It is native to tropical forest floors, so very dry indoor air, especially from winter heating, can show up as crisp brown leaf edges before anything else goes wrong; grouping plants together, using a pebble tray, or running a humidifier nearby all help. Keep it away from cold draughts, air-conditioning vents, and single-glazed windows in winter, since sustained cold below about 13°C stresses the plant.
What soil and pot does a Monstera deliciosa need?
Use a well-draining, loam-based potting mix in a pot with drainage holes, per Royal Horticultural Society guidance for Swiss cheese plant. Monstera dislikes sitting in soggy soil, so a mix that holds some moisture but drains freely, often a standard houseplant compost with added bark or perlite, works better than a dense, water-retentive mix. Repot only when the plant shows real signs of being root-bound; the general repotting guide covers the signs and the step-by-step method in full.
How and when do you fertilise a Monstera deliciosa?
Feed every two weeks through the growing season and monthly through winter, using a balanced liquid houseplant fertiliser diluted per the label, according to Penn State Extension and the RHS. Fertilising a plant that is not actively growing, such as one recovering from repotting or transplant shock, does more harm than good, since the roots are not taking up nutrients efficiently during that window.
Why won't my Monstera's leaves get holes?
A young Monstera produces solid, heart-shaped leaves with no holes at all, and that is normal, not a problem. Fenestrations, the splits and holes the plant is famous for, only appear once it matures and begins climbing, typically starting around two to three years of age. In the wild, that split-leaf structure develops as the plant climbs into the forest canopy, where a leaf full of holes sheds wind and lets light reach lower leaves rather than tearing in a storm. Bright indirect light and a climbing support, such as a moss pole, encourage the fastest growth and the most pronounced fenestration on mature leaves; low light slows both growth and hole formation.
Same species, different age and light history: fenestration is a maturity signal, not a care fix.
How do you propagate a Monstera deliciosa?
Take a stem cutting that includes at least one node, the point on the stem where a leaf or aerial root grows, cutting about an inch or two below it, per University of Minnesota Extension. Root the cutting in water or moist soil, changing water every few days if rooting in water, and keep soil-rooted cuttings consistently damp rather than wet. New growth typically takes two to three months to appear, so resist the urge to disturb the cutting early to check on it.
What problems does a Monstera deliciosa commonly get?
Most Monstera problems trace back to water or light rather than the plant itself, and the fixes are the same ones that apply across houseplants generally. Diagnose by the specific symptom in the guides below rather than guessing.
| Symptom | Likely cause and guide |
|---|---|
| Yellow leaves | Usually overwatering; see why leaves turn yellow |
| Brown, crispy leaf edges | Often low humidity or under-watering; see why leaves turn brown and crispy |
| Drooping despite moist soil | Check for root rot before assuming under-watering; see why plants droop or wilt |
| Mushy, dark stem base or a sour smell | Root rot, from consistently wet soil |
| Tiny flying insects near the soil | Fungus gnats, a sign the soil is staying too wet |
| Fine webbing or speckled leaves | Spider mites, more likely in dry indoor air |
Is Monstera deliciosa toxic to cats and dogs?
Yes. The ASPCA lists Monstera deliciosa, commonly sold as the Swiss cheese plant, as toxic to both cats and dogs. The leaves and stems contain insoluble calcium oxalate crystals, which cause oral irritation, intense burning of the mouth and lips, excessive drooling, vomiting and difficulty swallowing if a pet chews or eats them. It is considered mildly toxic rather than a medical emergency compared with plants like lilies, but the reaction is unpleasant for the animal, so keep it out of reach of pets and call the ASPCA Animal Poison Control Center or a vet if ingestion is suspected.
FAQ
- How often should you water a Monstera deliciosa?
- Water thoroughly when the top 1 to 2 inches of soil are dry, usually about once a week. Water more often in bright light and active growth, less in winter, and always let excess water drain away rather than let the pot sit in it.
- Why does my Monstera have no holes in its leaves?
- A young Monstera produces solid, heart-shaped leaves with no holes. Fenestrations only appear once the plant matures and starts climbing, typically around two to three years old, and bright indirect light produces the most pronounced fenestration on mature leaves.
- Is Monstera deliciosa toxic to cats and dogs?
- Yes. The ASPCA lists it as toxic to both, containing insoluble calcium oxalates that cause oral irritation, drooling, vomiting and difficulty swallowing if chewed or eaten. It is mildly toxic rather than a medical emergency, but keep it out of reach and call a vet if a pet ingests it.
- How do you propagate a Monstera deliciosa?
- Take a stem cutting that includes at least one node, cutting an inch or two below it. Root the cutting in water or moist soil kept consistently damp. New growth typically takes two to three months to appear.