Cold hardiness & minimum temperature

Is Flamingo Feather Celosia (Celosia spicata)cold hardy? Hardiness zone & min temp

Also called Wheat Celosia, Spiked Cockscomb, Pink Flamingo Celosia.

More about flamingo feather celosia

About Flamingo Feather Celosia

Celosia spicata · also called Wheat Celosia, Spiked Cockscomb · flowering

Flamingo Feather Celosia produces elegant, narrow wheat-like spikes in shades of pink, rose, and white, adding an airy, cut-flower quality to borders and containers. A heat-loving annual that thrives in full sun and well-drained soil. ASPCA lists Celosia as non-toxic to pets.

Cold limit: USDA 2-11 (frost-tender annual) · RHS H1C (18-32°C)

What flamingo feather celosia's hardiness rating actually means

Yes — flamingo feather celosia is genuinely cold hardy. Rated RHS H7 and USDA 2-11 (frost-tender annual), 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 2-11 (frost-tender annual) — 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. Flamingo Feather Celosia is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for flamingo feather celosia 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 flamingo feather celosia go outside or overwinter — and where?

Plant it out within USDA 2-11 (frost-tender annual) 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 flamingo feather celosia can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Flamingo Feather Celosia hardiness — frequently asked questions

Is flamingo feather celosia cold hardy?

Yes — flamingo feather celosia is genuinely cold hardy. Rated RHS H7 and USDA 2-11 (frost-tender annual), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Flamingo Feather Celosia is hardy across USDA 2-11 (frost-tender annual); 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 flamingo feather celosia can survive?

Minimum survivable temperature is roughly below about −20 °C. Flamingo Feather Celosia is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is flamingo feather celosia?

Flamingo Feather Celosia is rated USDA 2-11 (frost-tender annual) and RHS H7 — Hardy in the severest European continental winters.

Can flamingo feather celosia survive winter outside?

Plant it out within USDA 2-11 (frost-tender annual) 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 flamingo feather celosia 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.