Cold hardiness & minimum temperature

Is Monstera adansonii (Swiss cheese vine) (Monstera adansonii)cold hardy? Hardiness zone & min temp

Also called Swiss cheese vine, Adanson's monstera, Swiss cheese plant, Five-hole plant, Monkey mask.

More about monstera adansonii (swiss cheese vine)

About Monstera adansonii (Swiss cheese vine)

Monstera adansonii · also called Swiss cheese vine, Adanson's monstera · tropical

Monstera adansonii is a fast-growing tropical aroid vine prized for thin, lacy leaves riddled with oval holes (fenestrations). Its defining care need is bright, indirect light paired with a chunky, fast-draining mix kept lightly moist but never soggy. Give it a moss pole to climb and warm, humid air, and it will trail or scramble vigorously.

Cold limit: USDA 10a-12b (outdoors only in frost-free tropical climates) (18-27°C)

What monstera adansonii (swiss cheese vine)'s hardiness rating actually means

Monstera adansonii (Swiss cheese vine) is not cold hardy. It is a tropical houseplant that dies if it is left out through frost — there is no zone where it overwinters outdoors in a UK or cold-US climate. Its RHS rating of H1b means: Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season. On the US scale that maps to USDA 10a-12b (outdoors only in frost-free tropical climates) — the zones where it can be left outdoors year-round.

New to these scales? The USDA hardiness zone map explained covers how the zone numbers work, and you can find your own zone with the zone finder.

Minimum temperature — and what happens below it

Minimum survivable temperature is roughly about 10 °C (sustained cold below this is damaging). Monstera adansonii (Swiss cheese vine) has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for monstera adansonii (swiss cheese vine) as it gets too cold:

Below about about 10 °C, growth stalls and the leaves start to show cold stress — dark, water-soaked, or yellowing patches.
A single light frost blackens the foliage; a hard freeze kills the whole plant, roots included, and it does not recover.
Even a cold, draughty windowsill or an unheated porch in winter can be enough to damage it permanently.

Can monstera adansonii (swiss cheese vine) go outside or overwinter — and where?

It can holiday outdoors in summer once nights are reliably above 10 °C, in shade or dappled light, hardened off gradually.
Bring it back indoors well before the first autumn frost — do not wait for a frost warning, move it when nights drop toward 10-12 °C.
It will never overwinter outside in a temperate climate; the indoors is its winter home, full stop.

Work back from your local frost dates with the frost-date calculator: the last spring frost and first autumn frost are what really decide when monstera adansonii (swiss cheese vine) can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1b figure above.

Monstera adansonii (Swiss cheese vine) hardiness — frequently asked questions

Is monstera adansonii (swiss cheese vine) cold hardy?

Monstera adansonii (Swiss cheese vine) is not cold hardy. It is a tropical houseplant that dies if it is left out through frost — there is no zone where it overwinters outdoors in a UK or cold-US climate. Indoor-only in almost every home. Monstera adansonii (Swiss cheese vine) can only live outside year-round in genuinely frost-free climates (roughly USDA 10a-12b (outdoors only in frost-free tropical climates)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature monstera adansonii (swiss cheese vine) can survive?

What hardiness zone is monstera adansonii (swiss cheese vine)?

Monstera adansonii (Swiss cheese vine) is rated USDA 10a-12b (outdoors only in frost-free tropical climates) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can monstera adansonii (swiss cheese vine) survive winter outside?

It can holiday outdoors in summer once nights are reliably above 10 °C, in shade or dappled light, hardened off gradually. Bring it back indoors well before the first autumn frost — do not wait for a frost warning, move it when nights drop toward 10-12 °C. It will never overwinter outside in a temperate climate; the indoors is its winter home, full stop.

What happens to monstera adansonii (swiss cheese vine) below its minimum temperature?

Below about about 10 °C, growth stalls and the leaves start to show cold stress — dark, water-soaked, or yellowing patches. A single light frost blackens the foliage; a hard freeze kills the whole plant, roots included, and it does not recover. Even a cold, draughty windowsill or an unheated porch in winter can be enough to damage it permanently.