Cold hardiness & minimum temperature

Is Hermann's Pride Yellow Archangel (Lamium galeobdolon 'Hermann's Pride')cold hardy? Hardiness zone & min temp

Also called Hermann's Pride Yellow Archangel, Hermann's Pride Dead Nettle.

More about hermann's pride yellow archangel

About Hermann's Pride Yellow Archangel

Lamium galeobdolon 'Hermann's Pride' · also called Hermann's Pride Yellow Archangel, Hermann's Pride Dead Nettle · flowering

A well-behaved, clump-forming selection of yellow archangel with elegantly silver-netted, lance-shaped leaves and butter-yellow flowers in late spring. Unlike the straight species, 'Hermann's Pride' does not spread invasively by long stolons, making it a reliable and ornamental choice for shaded borders and woodland gardens.

Cold limit: USDA 6-9 · RHS H5 (-15°C to 27°C)

What hermann's pride yellow archangel's hardiness rating actually means

Yes — hermann's pride yellow archangel is genuinely cold hardy. Rated RHS H5 and USDA 6-9, it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H5 means: Hardy in most of the UK and in cold winters. On the US scale that maps to USDA 6-9 — 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 −15 to −10 °C. Hermann's Pride Yellow Archangel is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for hermann's pride yellow archangel as it gets too cold:

It tolerates winter lows to about −15 to −10 °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 hermann's pride yellow archangel go outside or overwinter — and where?

Plant it out within USDA 6-9 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 hermann's pride yellow archangel can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Hermann's Pride Yellow Archangel hardiness — frequently asked questions

Is hermann's pride yellow archangel cold hardy?

Yes — hermann's pride yellow archangel is genuinely cold hardy. Rated RHS H5 and USDA 6-9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Hermann's Pride Yellow Archangel is hardy across USDA 6-9; 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 hermann's pride yellow archangel can survive?

Minimum survivable temperature is roughly about −15 to −10 °C. Hermann's Pride Yellow Archangel is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is hermann's pride yellow archangel?

Hermann's Pride Yellow Archangel is rated USDA 6-9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can hermann's pride yellow archangel survive winter outside?

Plant it out within USDA 6-9 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 hermann's pride yellow archangel below its minimum temperature?

It tolerates winter lows to about −15 to −10 °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.