Cold hardiness & minimum temperature

Is Aglaonema Suksom Jaipong (Aglaonema 'Suksom Jaipong')cold hardy? Hardiness zone & min temp

Also called Suksom Jaipong Aglaonema, Thai Red Aglaonema.

More about aglaonema suksom jaipong

About Aglaonema Suksom Jaipong

Aglaonema 'Suksom Jaipong' · also called Suksom Jaipong Aglaonema, Thai Red Aglaonema · houseplant

Aglaonema 'Suksom Jaipong' is a vivid Thai-bred Chinese evergreen with dark green leaves splashed in pink, red and cream. The bold colour develops best in bright-indirect light. It is a compact, slow-growing, warmth-loving houseplant that rewards careful, restrained watering and dislikes cold, making it a colourful low-maintenance choice.

Cold limit: USDA 10-12 (indoor in most US homes) · RHS H1b (18-27°C)

Watch for — Cold injury: Temperatures below about 15°C cause greyish, water-soaked patches. Keep it warm and away from drafts, cold glass and air-conditioning, which it tolerates poorly.

What aglaonema suksom jaipong's hardiness rating actually means

Aglaonema Suksom Jaipong 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). Aglaonema Suksom Jaipong has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Aglaonema Suksom Jaipong hardiness — frequently asked questions

Is aglaonema suksom jaipong cold hardy?

Aglaonema Suksom Jaipong 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 Suksom Jaipong 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 aglaonema suksom jaipong can survive?

What hardiness zone is aglaonema suksom jaipong?

Aglaonema Suksom Jaipong 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 aglaonema suksom jaipong 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 suksom jaipong 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.