Cold hardiness & minimum temperature

Is Hedera colchica 'Dentata Variegata' (Hedera colchica 'Dentata Variegata')cold hardy? Hardiness zone & min temp

Also called variegated Persian ivy, toothed variegated ivy.

More about hedera colchica 'dentata variegata'

About Hedera colchica 'Dentata Variegata'

Hedera colchica 'Dentata Variegata' · also called variegated Persian ivy, toothed variegated ivy · flowering

'Dentata Variegata' is a striking large-leaved Persian ivy with bold, soft-edged leaves boldly margined in creamy yellow that mellows to white. An RHS Award of Garden Merit climber, it brightens shade as a vigorous evergreen wall-cover or groundcover. Indoors it makes a dramatic trailer; the variegation holds best in good indirect light.

Cold limit: USDA 6-9 (outdoors) · RHS H5 (10-21°C)

What hedera colchica 'dentata variegata''s hardiness rating actually means

Yes — hedera colchica 'dentata variegata' is genuinely cold hardy. Rated RHS H5 and USDA 6-9 (outdoors), 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 (outdoors) — 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. Hedera colchica 'Dentata Variegata' is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for hedera colchica 'dentata variegata' 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 hedera colchica 'dentata variegata' go outside or overwinter — and where?

Plant it out within USDA 6-9 (outdoors) 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 hedera colchica 'dentata variegata' can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Hedera colchica 'Dentata Variegata' hardiness — frequently asked questions

Is hedera colchica 'dentata variegata' cold hardy?

Yes — hedera colchica 'dentata variegata' is genuinely cold hardy. Rated RHS H5 and USDA 6-9 (outdoors), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Hedera colchica 'Dentata Variegata' is hardy across USDA 6-9 (outdoors); 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 hedera colchica 'dentata variegata' can survive?

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

What hardiness zone is hedera colchica 'dentata variegata'?

Hedera colchica 'Dentata Variegata' is rated USDA 6-9 (outdoors) and RHS H5 — Hardy in most of the UK and in cold winters.

Can hedera colchica 'dentata variegata' survive winter outside?

Plant it out within USDA 6-9 (outdoors) 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 hedera colchica 'dentata variegata' 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.