Cold hardiness & minimum temperature

Is Wild Rose (Rosa canina)cold hardy? Hardiness zone & min temp

Also called Dog Rose, Wild Briar, Common Brier.

More about wild rose

About Wild Rose

Rosa canina · also called Dog Rose, Wild Briar · flowering

Rosa canina, the dog rose, is a vigorous deciduous climbing wild rose native to Europe, with arching thorny stems, single pale-pink to white scented blooms in early summer, and bright red hips in autumn. Extremely hardy and undemanding, it suits hedgerows and naturalistic gardens, and its vitamin-C-rich hips are used for syrups and teas.

Cold limit: USDA 3-7 (very cold-hardy species rose) · RHS H7 (10-25°C)

What wild rose's hardiness rating actually means

Yes — wild rose is genuinely cold hardy. Rated RHS H7 and USDA 3-7 (very cold-hardy species rose), it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H7 means: Hardy in the severest European continental winters. On the US scale that maps to USDA 3-7 (very cold-hardy species rose) — 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 below about −20 °C. Wild Rose is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for wild rose as it gets too cold:

It tolerates winter lows to about −20 °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 wild rose go outside or overwinter — and where?

Plant it out within USDA 3-7 (very cold-hardy species rose) 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 wild rose can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Wild Rose hardiness — frequently asked questions

Is wild rose cold hardy?

Yes — wild rose is genuinely cold hardy. Rated RHS H7 and USDA 3-7 (very cold-hardy species rose), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Wild Rose is hardy across USDA 3-7 (very cold-hardy species rose); 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 wild rose can survive?

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

What hardiness zone is wild rose?

Wild Rose is rated USDA 3-7 (very cold-hardy species rose) and RHS H7 — Hardy in the severest European continental winters.

Can wild rose survive winter outside?

Plant it out within USDA 3-7 (very cold-hardy species rose) 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 wild rose below its minimum temperature?

It tolerates winter lows to about −20 °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.