Cold hardiness & minimum temperature

Is Flamingo Flower (Anthurium scherzerianum)cold hardy? Hardiness zone & min temp

Also called Flamingo Flower, Flamingo Lily, Pigtail Plant, Flamingo Plant.

More about flamingo flower

About Flamingo Flower

Anthurium scherzerianum · also called Flamingo Flower, Flamingo Lily · flowering

Flamingo Flower (Anthurium scherzerianum) is a compact tropical aroid prized for its waxy red spathes and curling orange spadix. Give it bright indirect light, high humidity, warmth above 18C, and a free-draining acidic mix kept lightly moist. The ASPCA lists it as toxic to cats, dogs, and horses.

Cold limit: USDA USDA zones 11-12; grown as a houseplant elsewhere (18-25C day, above 10C night)

Watch for — Drooping leaves: Often underwatering, cold draughts, or temperatures below 18C. Keep it warm and away from draughts, and water when the top few centimetres of mix dry out.

What flamingo flower's hardiness rating actually means

Flamingo Flower 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 USDA zones 11-12; grown as a houseplant elsewhere — 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). Flamingo Flower has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Flamingo Flower hardiness — frequently asked questions

Is flamingo flower cold hardy?

Flamingo Flower 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. Flamingo Flower can only live outside year-round in genuinely frost-free climates (roughly USDA USDA zones 11-12; grown as a houseplant elsewhere); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature flamingo flower can survive?

What hardiness zone is flamingo flower?

Flamingo Flower is rated USDA USDA zones 11-12; grown as a houseplant elsewhere and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can flamingo flower 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 flamingo flower 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.