Cold hardiness & minimum temperature

Is Meech's Prolific quince (Cydonia oblonga 'Meech's Prolific')cold hardy? Hardiness zone & min temp

Also called Meech's Prolific quince, Meech quince.

More about meech's prolific quince

About Meech's Prolific quince

Cydonia oblonga 'Meech's Prolific' · also called Meech's Prolific quince, Meech quince · edible

'Meech's Prolific' is a widely grown English quince cultivar prized for its heavy, reliable yields of medium-large, pear-shaped golden fruit with intensely fragrant, yellow flesh. Ripening September to October, it is one of the earliest quinces to crop. Self-fertile, compact relative to other cultivars, and well suited to UK gardens.

Cold limit: USDA 5–9 · RHS H5 (-18 to 38°C)

Watch for — Woolly aphid (Eriosoma lanigerum): White, woolly aphid colonies can establish on pruning wounds and in bark crevices, weakening wood and providing entry points for canker. Apply a dormant-season tar oil or plant-based insecticide wash in winter. Remove heavily infested branches and seal wounds promptly.

What meech's prolific quince's hardiness rating actually means

Yes — meech's prolific quince 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. Meech's Prolific quince is built for winter — once established it takes hard frost and snow in its stride.

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

Meech's Prolific quince hardiness — frequently asked questions

Is meech's prolific quince cold hardy?

Yes — meech's prolific quince 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. Meech's Prolific quince 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 meech's prolific quince can survive?

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

What hardiness zone is meech's prolific quince?

Meech's Prolific quince is rated USDA 5–9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can meech's prolific quince 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 meech's prolific quince 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.