Cold hardiness & minimum temperature

Is Painted Daisy (Tanacetum coccineum)cold hardy? Hardiness zone & min temp

Also called Painted Daisy, Pyrethrum, Persian Daisy.

More about painted daisy

About Painted Daisy

Tanacetum coccineum · also called Painted Daisy, Pyrethrum · flowering

Painted Daisy is a cheerful, long-lived perennial from the Caucasus region, producing vivid single or double daisy flowers in shades of red, pink, magenta, lilac, and white above finely divided, ferny, aromatic foliage. It blooms in late spring to early summer and often reblooms if cut back after first flowering. An excellent cut flower and cottage-garden classic.

Cold limit: USDA 3–9 · RHS H7 (-25 to 28°C)

What painted daisy's hardiness rating actually means

Yes — painted daisy is genuinely cold hardy. Rated RHS H7 and USDA 3–9, 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 3–9 — 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. Painted Daisy is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for painted daisy 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 painted daisy go outside or overwinter — and where?

Plant it out within USDA 3–9 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 painted daisy can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Painted Daisy hardiness — frequently asked questions

Is painted daisy cold hardy?

Yes — painted daisy is genuinely cold hardy. Rated RHS H7 and USDA 3–9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Painted Daisy is hardy across USDA 3–9; 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 painted daisy can survive?

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

What hardiness zone is painted daisy?

Painted Daisy is rated USDA 3–9 and RHS H7 — Hardy in the severest European continental winters.

Can painted daisy survive winter outside?

Plant it out within USDA 3–9 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 painted daisy 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.