Cold hardiness & minimum temperature

Is Crimean Linden (Tilia euchlora)cold hardy? Hardiness zone & min temp

Also called Crimean Linden, Caucasian Lime, Caucasian Linden.

More about crimean linden

About Crimean Linden

Tilia euchlora · also called Crimean Linden, Caucasian Lime · flowering

A hybrid linden (likely T. cordata × T. dasystyla) noted for its glossy deep-green foliage, pendulous branch tips, and relative resistance to aphid infestation compared to other lindens. Compact and pyramidal, it suits urban streets and smaller spaces. Fragrant creamy-white flowers appear in early summer, attracting pollinators.

Cold limit: USDA 4–7 · RHS H6 (-25°C to 35°C)

What crimean linden's hardiness rating actually means

Yes — crimean linden is genuinely cold hardy. Rated RHS H6 and USDA 4–7, it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H6 means: Hardy throughout the UK and northern Europe. On the US scale that maps to USDA 4–7 — 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 −20 to −15 °C. Crimean Linden is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for crimean linden as it gets too cold:

It tolerates winter lows to about −20 to −15 °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 crimean linden go outside or overwinter — and where?

Plant it out within USDA 4–7 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 crimean linden can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H6 figure above.

Crimean Linden hardiness — frequently asked questions

Is crimean linden cold hardy?

Yes — crimean linden is genuinely cold hardy. Rated RHS H6 and USDA 4–7, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Crimean Linden is hardy across USDA 4–7; 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 crimean linden can survive?

Minimum survivable temperature is roughly about −20 to −15 °C. Crimean Linden is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is crimean linden?

Crimean Linden is rated USDA 4–7 and RHS H6 — Hardy throughout the UK and northern Europe.

Can crimean linden survive winter outside?

Plant it out within USDA 4–7 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 crimean linden below its minimum temperature?

It tolerates winter lows to about −20 to −15 °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.