Cold hardiness & minimum temperature

Is Dwarf Lady's Mantle (Alchemilla erythropoda)cold hardy? Hardiness zone & min temp

Also called Dwarf Lady's Mantle.

More about dwarf lady's mantle

About Dwarf Lady's Mantle

Alchemilla erythropoda · also called Dwarf Lady's Mantle · flowering

Dwarf Lady's Mantle is a compact, clump-forming perennial prized for its fan-shaped, bluish-green leaves that bead water into jewel-like droplets. Frothy sprays of tiny chartreuse-yellow flowers bloom from late spring into summer. Smaller than Alchemilla mollis, it suits rock gardens and border edges, and is exceptionally cold-hardy.

Cold limit: USDA 3-8 · RHS H7 (-34 to 30°C)

What dwarf lady's mantle's hardiness rating actually means

Yes — dwarf lady's mantle is genuinely cold hardy. Rated RHS H7 and USDA 3-8, 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 3-8 — 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 below about −20 °C. Dwarf Lady's Mantle is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for dwarf lady's mantle 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 dwarf lady's mantle go outside or overwinter — and where?

Plant it out within USDA 3-8 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 dwarf lady's mantle can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Dwarf Lady's Mantle hardiness — frequently asked questions

Is dwarf lady's mantle cold hardy?

Yes — dwarf lady's mantle is genuinely cold hardy. Rated RHS H7 and USDA 3-8, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Dwarf Lady's Mantle is hardy across USDA 3-8; 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 dwarf lady's mantle can survive?

Minimum survivable temperature is roughly below about −20 °C. Dwarf Lady's Mantle is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is dwarf lady's mantle?

Dwarf Lady's Mantle is rated USDA 3-8 and RHS H7 — Hardy in the severest European continental winters.

Can dwarf lady's mantle survive winter outside?

Plant it out within USDA 3-8 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 dwarf lady's mantle 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.