Cold hardiness & minimum temperature

Is Forest Epipremnum (Epipremnum silvaticum)cold hardy? Hardiness zone & min temp

Also called Silvaticum Pothos, Wild Forest Pothos.

More about forest epipremnum

About Forest Epipremnum

Epipremnum silvaticum · also called Silvaticum Pothos, Wild Forest Pothos · tropical

Epipremnum silvaticum is a lesser-known Araceae climber from Southeast Asian forest floors, bearing slim, lance-shaped juvenile leaves on wiry stems. Less common in cultivation than E. aureum, it appreciates similar warm, humid conditions and moderate indirect light. All plant parts contain calcium oxalate crystals and are toxic to pets.

Cold limit: USDA 11-12 (indoor-only in temperate climates) · RHS H1b (18-29°C)

Watch for — Slow growth: Common in low light or cool temperatures. Move to a brighter spot and ensure temperatures stay above 18°C year-round.

What forest epipremnum's hardiness rating actually means

Forest Epipremnum 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 11-12 (indoor-only in temperate 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). Forest Epipremnum has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for forest epipremnum 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 forest epipremnum 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 forest epipremnum can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1b figure above.

Forest Epipremnum hardiness — frequently asked questions

Is forest epipremnum cold hardy?

Forest Epipremnum 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. Forest Epipremnum can only live outside year-round in genuinely frost-free climates (roughly USDA 11-12 (indoor-only in temperate climates)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature forest epipremnum can survive?

What hardiness zone is forest epipremnum?

Forest Epipremnum is rated USDA 11-12 (indoor-only in temperate climates) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can forest epipremnum 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 forest epipremnum 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.