Cold hardiness & minimum temperature

Is Ananas bracteatus (Ananas bracteatus)cold hardy? Hardiness zone & min temp

Also called red pineapple, wild pineapple.

More about ananas bracteatus

About Ananas bracteatus

Ananas bracteatus · also called red pineapple, wild pineapple · tropical

Ananas bracteatus, the red or wild pineapple, is a bold terrestrial bromeliad forming a large rosette of long, arching, viciously spined leaves, often cream-edged in its variegated forms and flushed rose. It bears a showy bright-red to pink ornamental pineapple on a tall stalk. Sun-loving and tough, it wants warmth, light and free-draining soil.

Cold limit: USDA 10-12 (frost-tender; indoor or greenhouse in cool climates) · RHS H1b (18-30°C)

Watch for — Root rot: Caused by waterlogged soil. Use a sharply draining mix, allow the soil surface to dry between waterings, and reduce water in winter.

What ananas bracteatus's hardiness rating actually means

Ananas bracteatus 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 (frost-tender; indoor or greenhouse in cool 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). Ananas bracteatus has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Ananas bracteatus hardiness — frequently asked questions

Is ananas bracteatus cold hardy?

Ananas bracteatus 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. Ananas bracteatus can only live outside year-round in genuinely frost-free climates (roughly USDA 10-12 (frost-tender; indoor or greenhouse in cool climates)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature ananas bracteatus can survive?

What hardiness zone is ananas bracteatus?

Ananas bracteatus is rated USDA 10-12 (frost-tender; indoor or greenhouse in cool climates) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can ananas bracteatus 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 ananas bracteatus 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.