Cold hardiness & minimum temperature

Is Rhaphidophora Decursiva (Rhaphidophora decursiva)cold hardy? Hardiness zone & min temp

Also called Dragon's Tail, Creeping Philodendron, Dragon Tail Plant.

More about rhaphidophora decursiva

About Rhaphidophora Decursiva

Rhaphidophora decursiva · also called Dragon's Tail, Creeping Philodendron · tropical

Rhaphidophora decursiva, or Dragon's Tail, is a fast-growing tropical climbing aroid whose leaves deeply split and fenestrate as they mature. Give it bright indirect light, a chunky well-draining mix, high humidity, and a moss pole to climb. Like all aroids, it contains calcium oxalate crystals, so it is unsafe for pets.

Cold limit: USDA 10-12 (outdoors); grown as a houseplant in all other zones (18-29C)

What rhaphidophora decursiva's hardiness rating actually means

Rhaphidophora Decursiva 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 10-12 (outdoors); grown as a houseplant in all other zones — 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). Rhaphidophora Decursiva has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

Concretely, for rhaphidophora decursiva 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 rhaphidophora decursiva 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 rhaphidophora decursiva can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H1c figure above.

Rhaphidophora Decursiva hardiness — frequently asked questions

Is rhaphidophora decursiva cold hardy?

Rhaphidophora Decursiva 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. Rhaphidophora Decursiva can only live outside year-round in genuinely frost-free climates (roughly USDA 10-12 (outdoors); grown as a houseplant in all other zones); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature rhaphidophora decursiva can survive?

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

What hardiness zone is rhaphidophora decursiva?

Rhaphidophora Decursiva is rated USDA 10-12 (outdoors); grown as a houseplant in all other zones and RHS H1c — Warm-temperate — can summer outdoors but must come in well before the first frost.

Can rhaphidophora decursiva 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 rhaphidophora decursiva 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.