Cold hardiness & minimum temperature

Is Gaillardia 'Goblin' (Gaillardia x grandiflora 'Goblin')cold hardy? Hardiness zone & min temp

Also called Goblin blanket flower, dwarf blanket flower.

More about gaillardia 'goblin'

About Gaillardia 'Goblin'

Gaillardia x grandiflora 'Goblin' · also called Goblin blanket flower, dwarf blanket flower · flowering

Gaillardia 'Goblin' is a compact, dwarf blanket flower prized for daisy-like red blooms tipped in golden yellow from early summer to frost. It thrives in full sun and lean, sharply drained soil, shrugging off heat and drought. Deadhead for continuous colour. A short-lived but cheerful perennial that draws bees and butterflies.

Cold limit: USDA 3-10 · RHS H5 (15-30°C)

Watch for — Short-lived / crown rot: Often behaves as a short-lived perennial, especially in wet or rich soil. Sharp drainage and avoiding winter wet extend its life.

What gaillardia 'goblin''s hardiness rating actually means

Yes — gaillardia 'goblin' is genuinely cold hardy. Rated RHS H5 and USDA 3-10, 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 3-10 — 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. Gaillardia 'Goblin' is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for gaillardia 'goblin' 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 gaillardia 'goblin' go outside or overwinter — and where?

Plant it out within USDA 3-10 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 gaillardia 'goblin' can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Gaillardia 'Goblin' hardiness — frequently asked questions

Is gaillardia 'goblin' cold hardy?

Yes — gaillardia 'goblin' is genuinely cold hardy. Rated RHS H5 and USDA 3-10, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Gaillardia 'Goblin' is hardy across USDA 3-10; 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 gaillardia 'goblin' can survive?

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

What hardiness zone is gaillardia 'goblin'?

Gaillardia 'Goblin' is rated USDA 3-10 and RHS H5 — Hardy in most of the UK and in cold winters.

Can gaillardia 'goblin' survive winter outside?

Plant it out within USDA 3-10 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 gaillardia 'goblin' 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.