Cold hardiness & minimum temperature

Is Philodendron Nangaritense (Philodendron nangaritense)cold hardy? Hardiness zone & min temp

Also called Nangaritense, Fuzzy Petiole Philodendron.

More about philodendron nangaritense

About Philodendron Nangaritense

Philodendron nangaritense · also called Nangaritense, Fuzzy Petiole Philodendron · houseplant

Philodendron nangaritense is a rare Ecuadorian aroid famous for its red, fuzzy, bristly petioles topped with glossy green heart-shaped leaves. A climbing collector's species, it climbs slowly and prizes high humidity. Give it bright indirect light, a very chunky breathable mix, warmth, and consistent moisture to keep the distinctive fuzzy stems healthy.

Cold limit: USDA 10-12 (indoor in most US homes) · RHS H1b (18-28°C)

Watch for — Stalled, very slow growth: Cool temperatures or low light slow this already slow grower. Keep it warm and in bright indirect light during the growing season.

What philodendron nangaritense's hardiness rating actually means

Philodendron Nangaritense 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 (indoor in most US homes) — 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). Philodendron Nangaritense has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Philodendron Nangaritense hardiness — frequently asked questions

Is philodendron nangaritense cold hardy?

Philodendron Nangaritense 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. Philodendron Nangaritense can only live outside year-round in genuinely frost-free climates (roughly USDA 10-12 (indoor in most US homes)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature philodendron nangaritense can survive?

What hardiness zone is philodendron nangaritense?

Philodendron Nangaritense is rated USDA 10-12 (indoor in most US homes) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can philodendron nangaritense 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 philodendron nangaritense 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.