Cold hardiness & minimum temperature

Is Guriri Palm (Syagrus picrophylla)cold hardy? Hardiness zone & min temp

Also called Guriri, Coco Guriri.

More about guriri palm

About Guriri Palm

Syagrus picrophylla · also called Guriri, Coco Guriri · tropical

Syagrus picrophylla is a feather palm endemic to the Atlantic Forest of Brazil, closely related to the licuri palm but adapted to more humid conditions. It produces edible, oily fruits used locally for food and palm wine. Suited to tropical gardens and conservatories. True palms are generally pet-safe.

Cold limit: USDA 10b-12 · RHS H1c (18-30°C)

What guriri palm's hardiness rating actually means

Guriri 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 H1c means: Warm-temperate — can summer outdoors but must come in well before the first frost. On the US scale that maps to USDA 10b-12 — 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 5 °C (and never frost). Guriri Palm has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for guriri palm as it gets too cold:

Below about about 5 °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 guriri palm go outside or overwinter — and where?

It can holiday outdoors in summer once nights are reliably above 5 °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 guriri palm can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1c figure above.

Guriri Palm hardiness — frequently asked questions

Is guriri palm cold hardy?

Guriri 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. Guriri Palm can only live outside year-round in genuinely frost-free climates (roughly USDA 10b-12); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature guriri palm can survive?

Minimum survivable temperature is roughly about 5 °C (and never frost). Guriri Palm has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

What hardiness zone is guriri palm?

Guriri Palm is rated USDA 10b-12 and RHS H1c — Warm-temperate — can summer outdoors but must come in well before the first frost.

Can guriri palm survive winter outside?

It can holiday outdoors in summer once nights are reliably above 5 °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 guriri palm below its minimum temperature?

Below about about 5 °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.