Cold hardiness & minimum temperature

Is Strawberries (Fragaria × ananassa)cold hardy? Hardiness zone & min temp

Also called garden strawberry, pineapple strawberry.

About Strawberries

Fragaria × ananassa · also called garden strawberry, pineapple strawberry · edible

Strawberries are low-growing perennial fruit plants ideal for beds, containers, and hanging baskets. June-bearing types produce one heavy summer crop, everbearers and day-neutrals crop in flushes from early summer to autumn. Pet-safe; fruit and foliage are non-toxic.

The garden strawberry, Fragaria x ananassa, is not a wild species but an 18th-century hybrid of the South American Fragaria chiloensis (large fruit, from Chile) and the North American Fragaria virginiana (small, intensely aromatic fruit), combining size and flavour.

A herbaceous perennial that spreads by runners (stolons) producing daughter plants; productivity declines after a few years, so beds are typically renovated or replanted on a rotation.

Cold limit: USDA 4-9 (varies by cultivar) · RHS H6 (15-26°C)

Sources: en.wikipedia.org, botanicgardens.uw.edu, missouribotanicalgarden.org

What strawberries's hardiness rating actually means

Yes — strawberries is genuinely cold hardy. Rated RHS H6 and USDA 4-9 (varies by cultivar), 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 (varies by cultivar) — 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. Strawberries is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for strawberries 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 strawberries go outside or overwinter — and where?

Plant it out within USDA 4-9 (varies by cultivar) 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 strawberries can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H6 figure above.

Strawberries hardiness — frequently asked questions

Is strawberries cold hardy?

Yes — strawberries is genuinely cold hardy. Rated RHS H6 and USDA 4-9 (varies by cultivar), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Strawberries is hardy across USDA 4-9 (varies by cultivar); 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 strawberries can survive?

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

What hardiness zone is strawberries?

Strawberries is rated USDA 4-9 (varies by cultivar) and RHS H6 — Hardy throughout the UK and northern Europe.

Can strawberries survive winter outside?

Plant it out within USDA 4-9 (varies by cultivar) 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 strawberries 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.