Cold hardiness & minimum temperature

Is Winter Nelis pear (Pyrus communis 'Winter Nelis')cold hardy? Hardiness zone & min temp

Also called Winter Nelis pear, Winter Nelis.

More about winter nelis pear

About Winter Nelis pear

Pyrus communis 'Winter Nelis' · also called Winter Nelis pear, Winter Nelis · edible

Winter Nelis is a late-season Belgian dessert pear producing small to medium, russet-green fruit with rich, aromatic, very sweet flesh that keeps exceptionally well into January–February. It is one of the finest late keeping pears for cool stores. It needs a sheltered warm site in the UK and reliable pollinators, but rewards patience with outstanding flavour.

Cold limit: USDA 5-9 · RHS H5 (-18°C to 35°C)

Watch for — Inadequate ripening in cool climates: Winter Nelis is a late-season variety that struggles to ripen fully without warmth. Harvest in late October and place in cool store (2–4°C); fruit typically comes into eating condition in December–January. Growing under glass or on a south wall is strongly advised in the UK.

What winter nelis pear's hardiness rating actually means

Yes — winter nelis pear is genuinely cold hardy. Rated RHS H5 and USDA 5-9, 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 5-9 — 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. Winter Nelis pear is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for winter nelis pear 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 winter nelis pear go outside or overwinter — and where?

Plant it out within USDA 5-9 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 winter nelis pear can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Winter Nelis pear hardiness — frequently asked questions

Is winter nelis pear cold hardy?

Yes — winter nelis pear is genuinely cold hardy. Rated RHS H5 and USDA 5-9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Winter Nelis pear is hardy across USDA 5-9; 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 winter nelis pear can survive?

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

What hardiness zone is winter nelis pear?

Winter Nelis pear is rated USDA 5-9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can winter nelis pear survive winter outside?

Plant it out within USDA 5-9 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 winter nelis pear 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.