Cold hardiness & minimum temperature

Is Fragrant Hosta 'Guacamole' (Hosta 'Guacamole')cold hardy? Hardiness zone & min temp

Also called Fragrant plantain lily.

More about fragrant hosta 'guacamole'

About Fragrant Hosta 'Guacamole'

Hosta 'Guacamole' · also called Fragrant plantain lily · houseplant

Hosta 'Guacamole' is a vigorous, sun-tolerant fragrant hosta with large apple-green to chartreuse leaves edged dark green, derived from H. plantaginea breeding. It rewards more light with brighter gold colour and produces large, near-white, sweetly scented flowers in late summer. A robust, fast-growing clump for borders and pots that perfumes the evening garden.

Cold limit: USDA 3-9 (herbaceous, dies back each winter) · RHS H7 (-34 to 27°C)

What fragrant hosta 'guacamole''s hardiness rating actually means

Yes — fragrant hosta 'guacamole' is genuinely cold hardy. Rated RHS H7 and USDA 3-9 (herbaceous, dies back each winter), it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H7 means: Hardy in the severest European continental winters. On the US scale that maps to USDA 3-9 (herbaceous, dies back each winter) — 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 below about −20 °C. Fragrant Hosta 'Guacamole' is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for fragrant hosta 'guacamole' as it gets too cold:

It tolerates winter lows to about −20 °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 fragrant hosta 'guacamole' go outside or overwinter — and where?

Plant it out within USDA 3-9 (herbaceous, dies back each winter) 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 fragrant hosta 'guacamole' can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Fragrant Hosta 'Guacamole' hardiness — frequently asked questions

Is fragrant hosta 'guacamole' cold hardy?

Yes — fragrant hosta 'guacamole' is genuinely cold hardy. Rated RHS H7 and USDA 3-9 (herbaceous, dies back each winter), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Fragrant Hosta 'Guacamole' is hardy across USDA 3-9 (herbaceous, dies back each winter); 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 fragrant hosta 'guacamole' can survive?

Minimum survivable temperature is roughly below about −20 °C. Fragrant Hosta 'Guacamole' is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is fragrant hosta 'guacamole'?

Fragrant Hosta 'Guacamole' is rated USDA 3-9 (herbaceous, dies back each winter) and RHS H7 — Hardy in the severest European continental winters.

Can fragrant hosta 'guacamole' survive winter outside?

Plant it out within USDA 3-9 (herbaceous, dies back each winter) 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 fragrant hosta 'guacamole' below its minimum temperature?

It tolerates winter lows to about −20 °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.