Houseplant · Araceae
Swiss Cheese Vine
Monstera adansonii
Supplied with bright indirect light and a support to climb, the Swiss cheese vine grows fast and develops its fenestrated leaves.
Bright indirect
60–85°F · 16–29°C
USDA 10–12
3–8 ft · 0.9–2.4 m
Overview
The Swiss cheese vine takes its name from the perforations that open across the leaves as the plant matures. It is a climbing aroid native to the tropical forests of Central and South America, where it ascends tree trunks toward brighter light. That climbing habit carries over indoors, so the plant performs best trained onto a moss pole or allowed to trail from a high shelf.
As a member of the arum family alongside philodendrons and pothos, it makes modest demands. Bright indirect light, a coarse mix that drains freely, and watering only once the surface has dried cover most of its needs. The perforations, termed fenestrations, are the return on that care, and each one widens as the leaf develops.
It is routinely confused with the larger Monstera deliciosa, though it is a smaller, faster vine of finer texture. Given warmth, humidity, and vertical support it grows quickly. The consideration that matters most is that every part of it is toxic should a pet or child chew it.
Care
The short version: bright indirect light, a free-draining potting mix, and water only once the top inch or two has dried. Keep it warm and humid, provide a support to climb, and it grows fast.
Light
Provide bright indirect light to obtain the largest leaves and the most fenestrations. The plant tolerates medium light or partial shade, but growth slows and the leaves stay smaller and more entire under those levels. Keep it out of harsh direct sun, which scorches the foliage.
Water
Water once the top 1 to 2 inches (2.5 to 5 cm) of soil has dried, then irrigate thoroughly and let the pot drain. Saturated soil is the quickest route to root rot, so err toward the dry side. The plant signals thirst well before the medium remains wet long enough to cause harm.
Soil
Use a well-draining, organic-rich potting mix, opened up with bark or perlite so water passes through freely. The plant is indifferent to pH and accepts the full 6.0 to 8.0 range. Drainage matters far more than the precise formulation.
Temperature
Hold the plant between 60°F to 85°F (15.6°C to 29.4°C), a band that matches most heated interiors. It has no frost tolerance and responds poorly to cold drafts, so keep it away from chilly windows and air conditioning outlets in winter.
Humidity
This tropical vine prefers relative humidity above 50%. It persists in average room air but responds to added moisture with larger, healthier leaves. A pebble tray, a humidifier, or a bright bathroom all raise the local level.
Feeding
Through spring and summer, apply a balanced houseplant fertilizer every two weeks at label strength. Reduce feeding in autumn and winter as growth slows. Consistent nutrition through the warm season is what supports the plant's rapid growth.
Pruning
Cut leggy vines back to maintain density and remove damaged leaves at the base. Pruning during the growing season also supplies cuttings suitable for rooting. Pinching the growing tips promotes branching rather than a single elongated bare stem.
Repotting
Repot every 1 to 2 years in spring, advancing one pot size when roots emerge through the drainage holes, circle the pot, or growth slows. Fresh medium and slightly more volume sustain this fast grower. Installing a stake or pole at the same time provides the support it climbs.
Size & spacing
Trained upward indoors it attains roughly 3 to 8 feet (91 to 244 cm) in height, with a spread near 1 to 3 feet (30 to 91 cm). Given room to climb or trail, the vines occupy the available space quickly.
Troubleshooting
Most disorders on this vine trace to irrigation and to the air around it. Reading the early signals on the leaves and roots lets you correct the cause before it advances. Match the symptom below, then intervene while intervention still changes the outcome.
Mushy roots and a wilting plant
Root rot develops when the roots stay waterlogged and suffocate, so the tissue turns brown and soft and the canopy wilts even though the soil is wet. Lift the plant, excise every rotten root back to firm tissue, and repot into fresh, free-draining mix. The correction holds only if the excess watering that caused the anaerobic conditions stops.
Fix:
- Unpot plant
- Cut away rotten roots
- Repot in fresh draining mix
Leaves turning yellow
Yellowing on this vine points to overwatering and a mix that holds water past what the roots can use. Confirm it by testing whether the soil stays saturated and whether the stem base has gone soft. Reduce the watering frequency, restore free drainage, and allow the soil to dry between waterings so the roots can take up oxygen again.
Fix:
- Reduce watering
- Ensure pot drains freely
- Let soil dry before next watering
Dark spots on the leaves
Brown or dark leaf spots develop where moisture lingers on the lamina and the surrounding air stays still. Remove the affected leaves, water at the soil rather than over the foliage, and open up the canopy so air moves freely. A dry leaf surface with good circulation removes the conditions that let new lesions form.
Fix:
- Remove affected leaves
- Avoid wetting foliage
- Improve air circulation
Fine webbing and speckled leaves
Spider mites colonize the plant when the air turns dry, leaving fine webbing and a stippled, dusty cast across the leaves as they feed. Rinse the foliage, wipe the leaves clean, and apply insecticidal soap if the population persists. Regular inspection of the leaf undersides and maintained humidity are the most dependable deterrents.
Fix:
- Rinse foliage
- Wipe leaves
- Apply insecticidal soap
Brown bumps stuck to the stems
Scale insects present as small brown bumps fixed along the stems and leaves, protected under a shell that resists brushing. Treat each one with alcohol, remove the remainder by hand, and follow with horticultural oil to smother survivors. Inspecting and quarantining any incoming plant prevents them establishing on the rest of the collection.
Fix:
- Wipe with alcohol
- Remove scale by hand
- Apply horticultural oil
New leaves come in solid with no holes
Entire, unperforated leaves indicate a juvenile plant or a light level below what the vine needs, not a disorder. Fenestration is a developmental trait that appears as the plant matures and climbs. Site it in bright indirect light out of direct sun, provide a support for it to ascend, and the perforated leaf form follows with age.
Fix:
- Provide bright indirect light
- Allow plant to mature
- Add climbing support
Toxicity
This is a toxic plant throughout, from leaf to stem. Every part contains insoluble calcium oxalate crystals that abrade and burn the mouth and throat on contact when chewed, producing drooling, pain, and swelling. Keep it out of reach of pets and children, and wear gloves for pruning, since the sap can irritate skin.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Moderate
A cat that bites the tissue punctures cells that release sharp calcium oxalate crystals into the mouth. The clinical picture is drooling, pawing at the mouth, vomiting, and difficulty swallowing.
Dogs Moderate
In a dog that chews the foliage, the crystals produce intense oral burning, profuse drooling, and gastrointestinal upset. That immediate irritation usually limits how much is ingested.
Horses Toxic
The same insoluble oxalates irritate the equine mouth and gut, producing drooling, oral pain, and colicky discomfort. The plant should be kept entirely out of a horse's reach.
Rabbits Toxic
This vine is not appropriate browse for rabbits. Ingestion causes oral irritation, drooling, and digestive upset, so it belongs where a rabbit cannot access it.
Livestock Toxic
Grazing stock such as goats and sheep sustain painful oral and gastrointestinal irritation from the oxalate crystals. There is no case for allowing them access to it.
Birds Toxic
A pet bird that shreds a leaf takes the same burning irritation into the beak and throat. Cages and perches should be kept clear of the foliage.
People Caution
No part of this plant is edible. Chewing it burns the mouth and swells the lips and throat, and the sap can leave skin itchy or raw, which is why gloves are advised for pruning.
Wear gloves; sap can cause contact dermatitis
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
Poison Control: (800) 222-1222
Canada
Poison Centres: 1-844-764-7669
Varieties
Only a few named forms of this vine occur in cultivation. These are the two worth noting.
subsp. laniata
An accepted subspecies into which the older name Monstera friedrichsthalii has been folded, that name now standing as a synonym of it.
'Mint' (variegated)
An RHS-recognized variegated cultivar whose leaves carry marbling in pale mint green.
How to propagate
This is among the more readily propagated houseplants, and one healthy stem is enough to raise a new plant.
Stem cuttingsEasy
Spring to summer · Several weeks to root
Stem cuttings are the most straightforward means of propagating this vine. Take them during spring or summer, cutting just below a node that already bears an aerial root, then hold the cutting in water or a moist medium. Roots establish over several weeks to yield an independent plant.
Air layeringModerate
Growing season · Few weeks to form roots
Air layering initiates roots while the stem remains attached to the parent, which raises the success rate on a difficult vine. Enclose a node in damp moss through the growing season and allow the few weeks it takes for roots to form. Sever the rooted section and pot it once roots are established.
Myths
The holes appear because the plant is underfed.
Nutrition does not govern the perforations. The holes, called fenestrations, open as each leaf matures, so a juvenile or shaded plant has simply not reached the developmental stage that produces them.
Adansonii is just a baby Monstera deliciosa.
The two are frequently confused but taxonomically distinct. Monstera adansonii Schott is its own accepted species, not a juvenile stage that develops into deliciosa.