Cold hardiness & minimum temperature

Is Creeping Coin Peperomia (Peperomia nummulariifolia)cold hardy? Hardiness zone & min temp

Also called Creeping Coin Peperomia, Coin-Leaf Peperomia, Trailing Coin Peperomia.

More about creeping coin peperomia

About Creeping Coin Peperomia

Peperomia nummulariifolia · also called Creeping Coin Peperomia, Coin-Leaf Peperomia · houseplant

Peperomia nummulariifolia is a delicate trailing species from the Caribbean and tropical South America, producing slender, creeping stems lined with small, rounded, coin-like leaves. It thrives in bright indirect light and is well-suited to hanging baskets or cascading over pot edges. Because its stems are thin and its leaves small, it is more sensitive to drought than the thick-leaved Peperomia species, so the soil should be kept lightly moist during the growing season. The ASPCA lists Peperomia as non-toxic to cats and dogs.

Cold limit: USDA 10–12 (indoor in most climates) · RHS H1b (18–27°C (min. 12°C))

Watch for — Stem die-back from cold or drought: Thin stems are quick to wither when temperatures drop below 12°C or when the root ball dries out completely; keep away from cold draughts and never allow the mix to bone-dry.

What creeping coin peperomia's hardiness rating actually means

Creeping Coin Peperomia 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 10–12 (indoor 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 10 °C (sustained cold below this is damaging). Creeping Coin Peperomia has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Creeping Coin Peperomia hardiness — frequently asked questions

Is creeping coin peperomia cold hardy?

Creeping Coin Peperomia 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. Creeping Coin Peperomia can only live outside year-round in genuinely frost-free climates (roughly USDA 10–12 (indoor in most climates)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature creeping coin peperomia can survive?

What hardiness zone is creeping coin peperomia?

Creeping Coin Peperomia is rated USDA 10–12 (indoor in most climates) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can creeping coin peperomia 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 creeping coin peperomia 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.