Cold hardiness & minimum temperature

Is Madagascar Palm (Pachypodium lamerei)cold hardy? Hardiness zone & min temp

Also called Madagascar Palm, Club-foot, Pachypodium.

More about madagascar palm

About Madagascar Palm

Pachypodium lamerei · also called Madagascar Palm, Club-foot · tropical

Pachypodium lamerei is a dramatic, spiny caudiciform from arid southwestern Madagascar, with a silver-green columnar trunk covered in stout spines and a crown of strap-like leaves. Not a true palm, it belongs to Apocynaceae. It demands full sun, fast-draining soil, and warm temperatures. All parts are toxic due to cardiac glycoside-type compounds. A striking statement plant for sunny rooms.

Cold limit: USDA 9–11 · RHS H1b (13–38°C)

Watch for — Leaf drop in winter: Normal semi-deciduous behaviour triggered by cooler temperatures or reduced watering in winter — the plant is not dead. Reduce watering, maintain warmth above 13°C, and new leaves will emerge with returning warmth and light.

What madagascar palm's hardiness rating actually means

Madagascar Palm 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 9–11 — 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). Madagascar Palm has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Madagascar Palm hardiness — frequently asked questions

Is madagascar palm cold hardy?

Madagascar Palm 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. Madagascar Palm can only live outside year-round in genuinely frost-free climates (roughly USDA 9–11); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature madagascar palm can survive?

What hardiness zone is madagascar palm?

Madagascar Palm is rated USDA 9–11 and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can madagascar palm 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 madagascar palm 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.