Cold hardiness & minimum temperature

Is Cat Palm (Chamaedorea cataractarum)cold hardy? Hardiness zone & min temp

Also called Cascade Palm, Cataract Palm, Mexican Cat Palm.

More about cat palm

About Cat Palm

Chamaedorea cataractarum · also called Cascade Palm, Cataract Palm · houseplant

The cat palm (Chamaedorea cataractarum) is a clumping, trunkless palm from southern Mexico and Central America, prized for its lush, arching fronds. Unlike most palms it wants consistently moist soil, bright indirect light, and high humidity. It is pet-safe: the genus Chamaedorea is listed non-toxic to cats and dogs by the ASPCA.

Cold limit: USDA 9-11 outdoors; grown as a houseplant elsewhere (18-27°C)

Watch for — Yellowing fronds: Often from overwatering and soggy roots, but can also signal cold stress or nutrient deficiency.

What cat palm's hardiness rating actually means

Cat Palm is half-hardy (RHS H2). It survives a mild winter outdoors in a sheltered spot, but a hard frost kills it — so in colder zones it is lifted, potted, or grown as a tender plant. Its RHS rating of H2 means: Tender — survives a frost-free greenhouse or a very mild, sheltered spot. On the US scale that maps to USDA 9-11 outdoors; 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 1 to 5 °C — tolerates cold but no real frost. Cat Palm shrugs off cold nights but a real, sustained freeze will kill it.

Concretely, for cat palm as it gets too cold:

Down to roughly about 1 to 5 °C it copes, especially if dry and sheltered.
A sustained hard frost collapses the top growth; whether it returns depends on whether the roots, crown or tubers froze.
Wet cold is far more lethal than dry cold for this plant — soggy, frozen soil is the usual killer.

Can cat palm go outside or overwinter — and where?

It can live outside year-round only in the mildest, most sheltered part of USDA 9-11 outdoors; grown as a houseplant elsewhere or a frost-free UK microclimate.
In colder zones, grow it in a pot you can move under cover, or lift its tubers/roots and store them frost-free over winter.
A south-facing wall, free-draining soil and a dry winter position can push it a full zone hardier than the books suggest.

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 cat palm can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H2 figure above.

Frost protection for borderline cat palm

Cat Palm is right on a hardiness edge in many gardens, so if you are pushing it, these measures buy it the margin it needs:

Mulch the crown or root zone deeply with bark, straw or leaf-mould before the first hard frost.
Move container plants against a warm wall or into an unheated but frost-free porch or greenhouse.
Fleece the top growth on the coldest nights, and keep it on the dry side — dry roots survive cold far better than wet ones.
Lift dahlia-type tubers or tender crowns after the first light frost blackens the foliage and store them somewhere cool but frost-free.

Cat Palm hardiness — frequently asked questions

Is cat palm cold hardy?

Cat Palm is half-hardy (RHS H2). It survives a mild winter outdoors in a sheltered spot, but a hard frost kills it — so in colder zones it is lifted, potted, or grown as a tender plant. Borderline outdoors. In its mild end of USDA 9-11 outdoors; grown as a houseplant elsewhere (and sheltered UK gardens) cat palm can stay out; in colder areas it must be lifted, brought in, or treated as a frost-tender plant.

What is the minimum temperature cat palm can survive?

Minimum survivable temperature is roughly about 1 to 5 °C — tolerates cold but no real frost. Cat Palm shrugs off cold nights but a real, sustained freeze will kill it.

What hardiness zone is cat palm?

Cat Palm is rated USDA 9-11 outdoors; grown as a houseplant elsewhere and RHS H2 — Tender — survives a frost-free greenhouse or a very mild, sheltered spot.

Can cat palm survive winter outside?

It can live outside year-round only in the mildest, most sheltered part of USDA 9-11 outdoors; grown as a houseplant elsewhere or a frost-free UK microclimate. In colder zones, grow it in a pot you can move under cover, or lift its tubers/roots and store them frost-free over winter. A south-facing wall, free-draining soil and a dry winter position can push it a full zone hardier than the books suggest.

How do I protect cat palm from frost?

Mulch the crown or root zone deeply with bark, straw or leaf-mould before the first hard frost. Move container plants against a warm wall or into an unheated but frost-free porch or greenhouse. Fleece the top growth on the coldest nights, and keep it on the dry side — dry roots survive cold far better than wet ones. Lift dahlia-type tubers or tender crowns after the first light frost blackens the foliage and store them somewhere cool but frost-free.