Cold hardiness & minimum temperature

Is Zebra Plant (Calathea Zebrina) (Goeppertia zebrina)cold hardy? Hardiness zone & min temp

Also called Zebra Plant, Calathea Zebrina, Zebra Prayer Plant, Peacock Plant.

More about zebra plant (calathea zebrina)

About Zebra Plant (Calathea Zebrina)

Goeppertia zebrina · also called Zebra Plant, Calathea Zebrina · houseplant

The zebra plant (Goeppertia zebrina, formerly Calathea zebrina) is a clumping Marantaceae prayer plant prized for velvety, lime-and-emerald striped leaves. Give it bright indirect light, consistently moist soil with filtered or rainwater, warmth, and humidity above 60 percent. ASPCA-listed as non-toxic to cats, dogs, and horses, making it a pet-safe choice.

Cold limit: USDA 10a-11b (grown as a houseplant elsewhere; not frost-tolerant) (18-24°C)

Watch for — Curling or rolling leaves: A sign of underwatering, dry air, or cold exposure. Keep the soil evenly moist, boost humidity, and keep the plant away from cold drafts and temperatures below 15°C (60°F).

What zebra plant (calathea zebrina)'s hardiness rating actually means

Zebra Plant (Calathea Zebrina) 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-11b (grown as a houseplant elsewhere; not frost-tolerant) — 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). Zebra Plant (Calathea Zebrina) has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for zebra plant (calathea zebrina) 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 zebra plant (calathea zebrina) 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 zebra plant (calathea zebrina) can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1b figure above.

Zebra Plant (Calathea Zebrina) hardiness — frequently asked questions

Is zebra plant (calathea zebrina) cold hardy?

Zebra Plant (Calathea Zebrina) 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. Zebra Plant (Calathea Zebrina) can only live outside year-round in genuinely frost-free climates (roughly USDA 10a-11b (grown as a houseplant elsewhere; not frost-tolerant)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature zebra plant (calathea zebrina) can survive?

What hardiness zone is zebra plant (calathea zebrina)?

Zebra Plant (Calathea Zebrina) is rated USDA 10a-11b (grown as a houseplant elsewhere; not frost-tolerant) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can zebra plant (calathea zebrina) 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 zebra plant (calathea zebrina) 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.