Cold hardiness & minimum temperature

Is Inch Plant 'Nanouk' (Tradescantia albiflora 'Nanouk')cold hardy? Hardiness zone & min temp

Also called Fantasy Venice, Tradescantia Nanouk.

More about inch plant 'nanouk'

About Inch Plant 'Nanouk'

Tradescantia albiflora 'Nanouk' · also called Fantasy Venice, Tradescantia Nanouk · houseplant

Tradescantia 'Nanouk' is a robust, patented inch plant with thick stems and vivid pink, green and cream striped leaves backed in purple. Bred for strong colour and sturdy growth, it is fast, easy and ideal for hanging pots. Bright indirect light keeps the pink vivid, while regular watering and pinching keep it full rather than leggy.

Cold limit: USDA 9-11 (grown indoors in most US homes) · RHS H1c (16-26°C)

What inch plant 'nanouk''s hardiness rating actually means

Inch Plant 'Nanouk' 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 9-11 (grown indoors in most US 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). Inch Plant 'Nanouk' has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for inch plant 'nanouk' 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 inch plant 'nanouk' 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 inch plant 'nanouk' can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1c figure above.

Inch Plant 'Nanouk' hardiness — frequently asked questions

Is inch plant 'nanouk' cold hardy?

Inch Plant 'Nanouk' 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. Inch Plant 'Nanouk' can only live outside year-round in genuinely frost-free climates (roughly USDA 9-11 (grown indoors in most US homes)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature inch plant 'nanouk' can survive?

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

What hardiness zone is inch plant 'nanouk'?

Inch Plant 'Nanouk' is rated USDA 9-11 (grown indoors in most US homes) and RHS H1c — Warm-temperate — can summer outdoors but must come in well before the first frost.

Can inch plant 'nanouk' 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 inch plant 'nanouk' 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.