Cold hardiness & minimum temperature

Is Tetrastigma voinierianum (Tetrastigma voinierianum)cold hardy? Hardiness zone & min temp

Also called Chestnut Vine, Lizard Plant.

More about tetrastigma voinierianum

About Tetrastigma voinierianum

Tetrastigma voinierianum · also called Chestnut Vine, Lizard Plant · houseplant

Tetrastigma voinierianum, the chestnut vine, is a fast, vigorous climber in the grape family grown for huge palmate leaves with felted bronze new growth. Given a moss pole or trellis it scrambles several metres a year. It wants bright indirect light, evenly moist soil, and room to climb, rewarding you with bold tropical foliage.

Cold limit: USDA 10-11 (indoor in most US/UK homes) · RHS H1c (16-24°C)

Watch for — Leaf drop: Often from cold draughts, sudden temperature swings, or letting the rootball dry out completely. Keep conditions stable and watering consistent.

What tetrastigma voinierianum's hardiness rating actually means

Tetrastigma voinierianum 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 H1c means: Warm-temperate — can summer outdoors but must come in well before the first frost. On the US scale that maps to USDA 10-11 (indoor in most US/UK homes) — 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 5 °C (and never frost). Tetrastigma voinierianum has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for tetrastigma voinierianum as it gets too cold:

Below about about 5 °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 tetrastigma voinierianum go outside or overwinter — and where?

It can holiday outdoors in summer once nights are reliably above 5 °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 tetrastigma voinierianum can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1c figure above.

Tetrastigma voinierianum hardiness — frequently asked questions

Is tetrastigma voinierianum cold hardy?

Tetrastigma voinierianum 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. Tetrastigma voinierianum can only live outside year-round in genuinely frost-free climates (roughly USDA 10-11 (indoor in most US/UK homes)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature tetrastigma voinierianum can survive?

Minimum survivable temperature is roughly about 5 °C (and never frost). Tetrastigma voinierianum has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

What hardiness zone is tetrastigma voinierianum?

Tetrastigma voinierianum is rated USDA 10-11 (indoor in most US/UK homes) and RHS H1c — Warm-temperate — can summer outdoors but must come in well before the first frost.

Can tetrastigma voinierianum survive winter outside?

It can holiday outdoors in summer once nights are reliably above 5 °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 tetrastigma voinierianum below its minimum temperature?

Below about about 5 °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.