Monstera
Monstera deliciosa · the Swiss Cheese Plant
It climbs twenty metres up rainforest trees from southern Mexico to Panama. The famous holes let light fall to the leaves below, and let downpours pass through without shredding the leaf.
Family
Araceae
Origin
Mexico
In the wild
Climbs 20 m
Indoors
2–3 m tall
Growth
Fast
With pets
Toxic
Where it's from
Southern Mexico to Panama
Climbs 20 m
Up rainforest trees, gripping bark with aerial roots.
Outdoors: zones 10–12
Only Florida, Hawaii, southern California and Texas. Everywhere colder, it lives inside.
A hemi-epiphyte
It starts on the jungle floor, then leaves the ground behind.
The delicious monster
Monstera deliciosa means "delicious monster." The monster is the leaf. The delicious is a fruit hardly anyone outside its homeland ever sees, where it goes by ceriman, or Mexican breadfruit.
Tastes like fruit salad
Ripe, the flesh is likened to a blend of pineapple, banana and mango.
About a year to ripen
The green, cob-like fruit ripens slowly from the base, scale by scale.
Burns until it's ready
Unripe, it carries the same calcium oxalate as the leaves, and stings the mouth raw.
How to keep it
LightBright, indirect
Four to six hours, or it won't make holes. No harsh direct sun.
WaterWhen the top 2 in dry
It would rather be dry than soggy. Root rot is the only real killer.
Humidity50–70%Tolerates average household air; greener and faster when humid.
Temperature18–27°CCold damage shows as blackened leaf edges below ~10°C.
SoilChunky aroid mixBark, perlite and coir. It must drain fast.
FeedingGrowing season onlyA balanced feed monthly through spring and summer.
DifficultyEasyForgiving and fast. A good first big plant.
With petsToxicCalcium oxalate crystals. Mouth irritation, drooling, vomiting.
PropagationCutting at a nodeOne node and a leaf, cut below the node; roots in 2–4 weeks.
RepottingEvery ~2 yearsWhen roots start to circle the pot. Up one pot size.
What the data says
The clean-air myth
Drag the slider. See how many Monsteras it takes to clean one room's air.
1 Monstera cleans 0.1% of one room's air
You'd need all 680 to make a measurable dent. The famous 1989 NASA result came from a sealed lab box; a real room's airflow beats any plant. Keep it for the looks.
What it costs
A plain green one is a commodity. A white one is a status symbol; the variegation is an unstable mutation collectors chase.
$15–40
Plain green
The everyday plant, in every garden centre.
$2k–12k
Thai Constellation
Lab-grown cream speckling. Stable, and coveted.
$50,000
Floor-size variegated
A mature variegated deliciosa. One Albo sold after a 182-bid war.
$15–40Plain green
$2k–12kThai Constellation
$50,000Floor-size variegated
Hover the points. The white in a variegated leaf has less chlorophyll, so it grows slower, weaker, rarer.
IUCN · Least Concern
In the wild
On millions of shelves, and quietly under pressure where it actually grows.
12,000+wild Monstera seized in one 2023 INTERPOL operation, smuggled from Guatemala to the US, even as it sells in every garden centre.
When it sulks
No holes / splitsToo young, or too little light. The commonest worry of all.
Yellow leavesOverwatering. Let it dry out more between drinks.
Brown, crispy edgesAir too dry, or underwatered.
Mushy stemRoot rot from soggy soil and poor drainage.
PestsSpider mites, scale, mealybugs. Wipe leaves, treat early.
Varieties & company
The varieties
Plain greenThai ConstellationAlbo VariegataAureaMint
Pairs with · keep apart from
CalatheaPhilodendronFernsSnake PlantCacti
A new plant, every week.
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