Cold hardiness & minimum temperature

Is Peacock Ginger (Kaempferia roscoeana)cold hardy? Hardiness zone & min temp

Also called Peacock Ginger, Peacock Plant, Resurrection Lily.

More about peacock ginger

About Peacock Ginger

Kaempferia roscoeana · also called Peacock Ginger, Peacock Plant · tropical

Kaempferia roscoeana is a shade-loving tropical perennial native to Myanmar and Thailand, grown for its iridescent, jewel-toned leaves with intricate dark and light green banding that strongly resemble peacock feathers. It produces small white to lavender flowers at soil level during summer and dies back completely to its rhizome in the dry season. The most important care fact is that this species requires more shade than most Kaempferia — direct sun rapidly bleaches and scorches the ornate foliage. The ASPCA lists the genus Kaempferia as non-toxic to cats, dogs, and horses.

Cold limit: USDA 10–12 (indoor in most climates) · RHS H1b (20–28°C (growing season); minimum 12°C)

What peacock ginger's hardiness rating actually means

Peacock Ginger 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). Peacock Ginger has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Peacock Ginger hardiness — frequently asked questions

Is peacock ginger cold hardy?

Peacock Ginger 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. Peacock Ginger 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 peacock ginger can survive?

What hardiness zone is peacock ginger?

Peacock Ginger 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 peacock ginger 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 peacock ginger 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.