Cold hardiness & minimum temperature

Is Pineapple Mint (Mentha suaveolens 'Variegata')cold hardy? Hardiness zone & min temp

Also called pineapple mint, variegated apple mint.

More about pineapple mint

About Pineapple Mint

Mentha suaveolens 'Variegata' · also called pineapple mint, variegated apple mint · herb

Pineapple mint is the cream-edged variegated form of apple mint, with soft, woolly green leaves splashed white and a mild fruity scent. Less aggressive than spearmint but still spreading, it makes an ornamental, pet-deterrent herb for borders and pots. Grow in moist soil with partial sun; the variegation is brightest in light shade and reverts in deep shade.

Cold limit: USDA 5-9 (herbaceous perennial; dies back and regrows from roots) · RHS H5 (15-24°C)

What pineapple mint's hardiness rating actually means

Yes — pineapple mint is genuinely cold hardy. Rated RHS H5 and USDA 5-9 (herbaceous perennial; dies back and regrows from roots), 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 (herbaceous perennial; dies back and regrows from roots) — 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. Pineapple Mint is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for pineapple mint 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 pineapple mint go outside or overwinter — and where?

Plant it out within USDA 5-9 (herbaceous perennial; dies back and regrows from roots) 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 pineapple mint can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Pineapple Mint hardiness — frequently asked questions

Is pineapple mint cold hardy?

Yes — pineapple mint is genuinely cold hardy. Rated RHS H5 and USDA 5-9 (herbaceous perennial; dies back and regrows from roots), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Pineapple Mint is hardy across USDA 5-9 (herbaceous perennial; dies back and regrows from roots); 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 pineapple mint can survive?

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

What hardiness zone is pineapple mint?

Pineapple Mint is rated USDA 5-9 (herbaceous perennial; dies back and regrows from roots) and RHS H5 — Hardy in most of the UK and in cold winters.

Can pineapple mint survive winter outside?

Plant it out within USDA 5-9 (herbaceous perennial; dies back and regrows from roots) 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 pineapple mint 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.