Cold hardiness & minimum temperature

Is Syngonium 'Strawberry Ice' (Syngonium podophyllum 'Strawberry Ice')cold hardy? Hardiness zone & min temp

Also called Strawberry Ice Arrowhead Vine.

More about syngonium 'strawberry ice'

About Syngonium 'Strawberry Ice'

Syngonium podophyllum 'Strawberry Ice' · also called Strawberry Ice Arrowhead Vine · houseplant

Syngonium 'Strawberry Ice' is a compact arrowhead vine prized for soft pink-flushed, cream-mottled foliage. Juvenile leaves are arrow-shaped, maturing toward lobed forms as the plant climbs. It thrives in bright indirect light, evenly moist but never soggy soil, and warm, humid air, rewarding small spaces with fast, trailing or climbing growth indoors.

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

What syngonium 'strawberry ice''s hardiness rating actually means

Syngonium 'Strawberry Ice' 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 (grown indoors 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). Syngonium 'Strawberry Ice' has no frost tolerance at all — it is an indoor plant in any climate with a real winter.

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

Syngonium 'Strawberry Ice' hardiness — frequently asked questions

Is syngonium 'strawberry ice' cold hardy?

Syngonium 'Strawberry Ice' 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. Syngonium 'Strawberry Ice' can only live outside year-round in genuinely frost-free climates (roughly USDA 10-12 (grown indoors in most US homes)); everywhere else it is a houseplant that summers out at most.

What is the minimum temperature syngonium 'strawberry ice' can survive?

What hardiness zone is syngonium 'strawberry ice'?

Syngonium 'Strawberry Ice' is rated USDA 10-12 (grown indoors 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 syngonium 'strawberry ice' 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 syngonium 'strawberry ice' 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.