Cold hardiness & minimum temperature

Is Aglaonema Pictum Tricolor (Aglaonema pictum 'Tricolor')cold hardy? Hardiness zone & min temp

Also called Camouflage plant, Tricolor Chinese evergreen, Aglaonema Tricolor, Pictum Tricolor.

More about aglaonema pictum tricolor

About Aglaonema Pictum Tricolor

Aglaonema pictum 'Tricolor' · also called Camouflage plant, Tricolor Chinese evergreen · houseplant

Aglaonema pictum 'Tricolor', the camouflage plant, is a slow-growing tropical aroid from Sumatra prized for army-pattern green variegation. It wants bright indirect light, an evenly-moist but never soggy aroid mix, warmth and high humidity. It is toxic: the ASPCA lists the genus (Chinese evergreen) as harmful to cats, dogs and horses.

Cold limit: 16-29°C

Watch for — Cold damage (grey/black blotches, wilting): This is a warm-loving tropical; exposure below about 15°C (60°F) or to cold draughts damages foliage. Keep it warm and away from chilly windows and AC vents.

What aglaonema pictum tricolor's hardiness rating actually means

Aglaonema Pictum Tricolor 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 not formally rated (treat as tender) — 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). Aglaonema Pictum Tricolor has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Aglaonema Pictum Tricolor hardiness — frequently asked questions

Is aglaonema pictum tricolor cold hardy?

Aglaonema Pictum Tricolor 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. Aglaonema Pictum Tricolor can only live outside year-round in genuinely frost-free climates (roughly USDA not formally rated (treat as tender)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature aglaonema pictum tricolor can survive?

What hardiness zone is aglaonema pictum tricolor?

Aglaonema Pictum Tricolor is rated USDA not formally rated (treat as tender) and RHS H1b — Sub-tropical — a normal warm home is fine, but it cannot go outside in a cool season.

Can aglaonema pictum tricolor 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 aglaonema pictum tricolor 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.