Cold hardiness & minimum temperature

Is Foxglove 'Camelot' (Digitalis purpurea 'Camelot')cold hardy? Hardiness zone & min temp

Also called Foxglove.

More about foxglove 'camelot'

About Foxglove 'Camelot'

Digitalis purpurea 'Camelot' · also called Foxglove · flowering

'Camelot' is a first-year-flowering foxglove series bred to bloom from seed in a single season, producing sturdy, well-branched spires of large outward-facing bells in cream, lavender, rose and white. More uniform and weather-resistant than the wild type, it suits borders in part shade with moist, rich soil. All parts are poisonous.

Cold limit: USDA 4-9 · RHS H5 (5-22°C)

Watch for — Crown rot in winter wet: Plants rot in soggy soil over winter. Site in free-draining, humus-rich ground and avoid waterlogging.

What foxglove 'camelot''s hardiness rating actually means

Yes — foxglove 'camelot' is genuinely cold hardy. Rated RHS H5 and USDA 4-9, 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 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 −15 to −10 °C. Foxglove 'Camelot' is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for foxglove 'camelot' 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 foxglove 'camelot' 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 foxglove 'camelot' can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Foxglove 'Camelot' hardiness — frequently asked questions

Is foxglove 'camelot' cold hardy?

Yes — foxglove 'camelot' is genuinely cold hardy. Rated RHS H5 and USDA 4-9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Foxglove 'Camelot' 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 foxglove 'camelot' can survive?

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

What hardiness zone is foxglove 'camelot'?

Foxglove 'Camelot' is rated USDA 4-9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can foxglove 'camelot' 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 foxglove 'camelot' 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.