Cold hardiness & minimum temperature

Is Actinidia kolomikta (Actinidia kolomikta)cold hardy? Hardiness zone & min temp

Also called variegated kiwi vine, Arctic kiwi, kolomikta kiwi.

More about actinidia kolomikta

About Actinidia kolomikta

Actinidia kolomikta · also called variegated kiwi vine, Arctic kiwi · edible

Actinidia kolomikta, the variegated or Arctic kiwi, is a hardy deciduous twining climber prized for leaves splashed pink and white, especially vivid on male plants in sun. Small fragrant white spring flowers can give way to sweet, smooth-skinned grape-sized kiwifruits if male and female plants are grown together. Far hardier than the fuzzy kiwi.

Cold limit: USDA 4-8 · RHS H6 (-35 to 28°C)

Watch for — Late-frost damage: Early new growth and flowers can be nipped by late spring frosts. Choose a sheltered spot and avoid frost pockets.

What actinidia kolomikta's hardiness rating actually means

Yes — actinidia kolomikta is genuinely cold hardy. Rated RHS H6 and USDA 4-8, it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H6 means: Hardy throughout the UK and northern Europe. On the US scale that maps to USDA 4-8 — 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 −20 to −15 °C. Actinidia kolomikta is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for actinidia kolomikta as it gets too cold:

It tolerates winter lows to about −20 to −15 °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 actinidia kolomikta go outside or overwinter — and where?

Plant it out within USDA 4-8 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 actinidia kolomikta can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H6 figure above.

Actinidia kolomikta hardiness — frequently asked questions

Is actinidia kolomikta cold hardy?

Yes — actinidia kolomikta is genuinely cold hardy. Rated RHS H6 and USDA 4-8, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Actinidia kolomikta is hardy across USDA 4-8; 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 actinidia kolomikta can survive?

Minimum survivable temperature is roughly about −20 to −15 °C. Actinidia kolomikta is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is actinidia kolomikta?

Actinidia kolomikta is rated USDA 4-8 and RHS H6 — Hardy throughout the UK and northern Europe.

Can actinidia kolomikta survive winter outside?

Plant it out within USDA 4-8 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 actinidia kolomikta below its minimum temperature?

It tolerates winter lows to about −20 to −15 °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.