Cold hardiness & minimum temperature

Is Pussy Ears Plant (Cyanotis somaliensis)cold hardy? Hardiness zone & min temp

Also called Furry Kittens, Hairy Wandering Jew, Somali Spiderwort.

More about pussy ears plant

About Pussy Ears Plant

Cyanotis somaliensis · also called Furry Kittens, Hairy Wandering Jew · houseplant

Pussy Ears Plant is a trailing succulent-like perennial from Somalia, closely related to Tradescantia. It bears small, fleshy, bright green leaves densely coated in long silvery-white hairs, resembling tiny cat ears. An unusual and easy-care hanging basket plant for dry conditions. Classified mildly-toxic as a precaution pending ASPCA confirmation.

Cold limit: USDA 10-11 (indoor-only in most climates) · RHS H1c (13-26°C)

What pussy ears plant's hardiness rating actually means

Pussy Ears Plant 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-only in most 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 5 °C (and never frost). Pussy Ears Plant has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Pussy Ears Plant hardiness — frequently asked questions

Is pussy ears plant cold hardy?

Pussy Ears Plant 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. Pussy Ears Plant can only live outside year-round in genuinely frost-free climates (roughly USDA 10-11 (indoor-only in most climates)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature pussy ears plant can survive?

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

What hardiness zone is pussy ears plant?

Pussy Ears Plant is rated USDA 10-11 (indoor-only in most climates) and RHS H1c — Warm-temperate — can summer outdoors but must come in well before the first frost.

Can pussy ears plant 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 pussy ears plant 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.