Cold hardiness & minimum temperature

Is Mignonette Alpine Strawberry (Fragaria vesca 'Mignonette')cold hardy? Hardiness zone & min temp

Also called Mignonette strawberry, miniature strawberry.

More about mignonette alpine strawberry

About Mignonette Alpine Strawberry

Fragaria vesca 'Mignonette' · also called Mignonette strawberry, miniature strawberry · edible

'Mignonette' is a classic French alpine strawberry forming compact, runnerless clumps that bear tiny, intensely fragrant red berries all season. Tolerant of partial shade and ideal for edging, pots and potager borders, it is easily raised from seed and comes true. The aromatic fruit is best eaten fresh, picked little and often through summer and autumn.

Cold limit: USDA 4-9 · RHS H6 (-30 to 28°C)

What mignonette alpine strawberry's hardiness rating actually means

Yes — mignonette alpine strawberry is genuinely cold hardy. Rated RHS H6 and USDA 4-9, 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 4-9 — 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 −20 to −15 °C. Mignonette Alpine Strawberry is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for mignonette alpine strawberry 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 mignonette alpine strawberry go outside or overwinter — and where?

Plant it out within USDA 4-9 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 mignonette alpine strawberry can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H6 figure above.

Mignonette Alpine Strawberry hardiness — frequently asked questions

Is mignonette alpine strawberry cold hardy?

Yes — mignonette alpine strawberry is genuinely cold hardy. Rated RHS H6 and USDA 4-9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Mignonette Alpine Strawberry is hardy across USDA 4-9; 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 mignonette alpine strawberry can survive?

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

What hardiness zone is mignonette alpine strawberry?

Mignonette Alpine Strawberry is rated USDA 4-9 and RHS H6 — Hardy throughout the UK and northern Europe.

Can mignonette alpine strawberry survive winter outside?

Plant it out within USDA 4-9 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 mignonette alpine strawberry 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.