Cold hardiness & minimum temperature

Is Echinacea 'Coconut Lime' (Echinacea 'Coconut Lime')cold hardy? Hardiness zone & min temp

Also called Coconut Lime coneflower, white-green coneflower.

More about echinacea 'coconut lime'

About Echinacea 'Coconut Lime'

Echinacea 'Coconut Lime' · also called Coconut Lime coneflower, white-green coneflower · flowering

Echinacea 'Coconut Lime' is a striking hybrid coneflower with large, pure white to cream petals and a distinctive lime-green central cone that matures to pale brown. It blooms prolifically in summer and is pollinators-friendly. Drought-tolerant when established. Not listed as toxic by the ASPCA; safe in gardens frequented by pets.

Cold limit: USDA 4–9 · RHS H7 (-20 to 30°C)

Watch for — Crown rot: Standing water around the crown in winter is the most common killer. Always plant in free-draining soil.

What echinacea 'coconut lime''s hardiness rating actually means

Yes — echinacea 'coconut lime' is genuinely cold hardy. Rated RHS H7 and USDA 4–9, 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 4–9 — 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 below about −20 °C. Echinacea 'Coconut Lime' is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for echinacea 'coconut lime' 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 echinacea 'coconut lime' go outside or overwinter — and where?

Plant it out within USDA 4–9 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 echinacea 'coconut lime' can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Echinacea 'Coconut Lime' hardiness — frequently asked questions

Is echinacea 'coconut lime' cold hardy?

Yes — echinacea 'coconut lime' is genuinely cold hardy. Rated RHS H7 and USDA 4–9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Echinacea 'Coconut Lime' is hardy across USDA 4–9; 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 echinacea 'coconut lime' can survive?

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

What hardiness zone is echinacea 'coconut lime'?

Echinacea 'Coconut Lime' is rated USDA 4–9 and RHS H7 — Hardy in the severest European continental winters.

Can echinacea 'coconut lime' survive winter outside?

Plant it out within USDA 4–9 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 echinacea 'coconut lime' 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.