Cold hardiness & minimum temperature

Is Taiwan Kiwi (Actinidia setosa)cold hardy? Hardiness zone & min temp

Also called Taiwan Kiwi, Taiwan Peach Kiwi, Hairy Kiwi Vine.

More about taiwan kiwi

About Taiwan Kiwi

Actinidia setosa · also called Taiwan Kiwi, Taiwan Peach Kiwi · edible

Taiwan Kiwi is a vigorous woody climbing vine endemic to the mountains of Taiwan (1,300–2,600 m elevation), producing small, fuzzy-skinned berry-sized fruits with a sweeter flavour than commercial kiwifruit. It requires both a male and female plant to fruit. Hardy to approximately -15°C, it is less widely grown than Actinidia deliciosa but valued by collectors and specialty fruit growers.

Cold limit: USDA 7–9 · RHS H5 (-15–30°C)

Watch for — Late frost damage to new growth: Even on a hardy plant, emerging spring shoots are highly frost-sensitive. In zones with late frosts, protect with horticultural fleece in April–May. Choose a sheltered wall position to delay bud-break slightly.

What taiwan kiwi's hardiness rating actually means

Yes — taiwan kiwi is genuinely cold hardy. Rated RHS H5 and USDA 7–9, it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H5 means: Hardy in most of the UK and in cold winters. On the US scale that maps to USDA 7–9 — 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 −15 to −10 °C. Taiwan Kiwi is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for taiwan kiwi as it gets too cold:

It tolerates winter lows to about −15 to −10 °C once established.
Below its rated zone, the visible damage is browned or blackened top growth and, in the worst case, a killed crown or root.
First-year, newly planted, or container-grown specimens are noticeably less hardy than established garden plants — the roots are exposed.

Can taiwan kiwi go outside or overwinter — and where?

Plant it out within USDA 7–9 and it overwinters with little or no help.
It does not want to come indoors — a warm winter room actually weakens a hardy plant by denying it dormancy.
The real risks in its range are waterlogging, wind-rock on young plants, and a late hard frost on new growth — not ordinary winter cold.

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 taiwan kiwi can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Taiwan Kiwi hardiness — frequently asked questions

Is taiwan kiwi cold hardy?

Yes — taiwan kiwi is genuinely cold hardy. Rated RHS H5 and USDA 7–9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Taiwan Kiwi is hardy across USDA 7–9; it belongs in the ground or a frost-proof container, not on a windowsill, and many types actively need a cold winter to perform.

What is the minimum temperature taiwan kiwi can survive?

Minimum survivable temperature is roughly about −15 to −10 °C. Taiwan Kiwi is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is taiwan kiwi?

Taiwan Kiwi is rated USDA 7–9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can taiwan kiwi survive winter outside?

Plant it out within USDA 7–9 and it overwinters with little or no help. It does not want to come indoors — a warm winter room actually weakens a hardy plant by denying it dormancy. The real risks in its range are waterlogging, wind-rock on young plants, and a late hard frost on new growth — not ordinary winter cold.

What happens to taiwan kiwi below its minimum temperature?

It tolerates winter lows to about −15 to −10 °C once established. Below its rated zone, the visible damage is browned or blackened top growth and, in the worst case, a killed crown or root. First-year, newly planted, or container-grown specimens are noticeably less hardy than established garden plants — the roots are exposed.