Cold hardiness & minimum temperature

Is Creeping Baby's Breath (Gypsophila repens)cold hardy? Hardiness zone & min temp

Also called Creeping Baby's Breath, Alpine Baby's Breath.

More about creeping baby's breath

About Creeping Baby's Breath

Gypsophila repens · also called Creeping Baby's Breath, Alpine Baby's Breath · flowering

Creeping Baby's Breath is a low, spreading alpine perennial from limestone mountains of central and southern Europe. It forms attractive trailing mats of narrow blue-green leaves covered in a froth of tiny white to pale-pink flowers throughout summer. Excellent for cascading over walls, rock garden edges, and alpine troughs in full sun with excellent drainage.

Cold limit: USDA 3-8 · RHS H7 (-25°C to 28°C)

Watch for — Root rot in wet winter soils: Poorly drained soil in winter is the primary cause of plant loss. Incorporate coarse grit liberally at planting and, in containers, ensure a deep drainage layer. Reduce watering to near zero when plants are dormant.

What creeping baby's breath's hardiness rating actually means

Yes — creeping baby's breath is genuinely cold hardy. Rated RHS H7 and USDA 3-8, 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 3-8 — 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. Creeping Baby's Breath is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for creeping baby's breath 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 creeping baby's breath go outside or overwinter — and where?

Plant it out within USDA 3-8 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 creeping baby's breath can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H7 figure above.

Creeping Baby's Breath hardiness — frequently asked questions

Is creeping baby's breath cold hardy?

Yes — creeping baby's breath is genuinely cold hardy. Rated RHS H7 and USDA 3-8, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Creeping Baby's Breath is hardy across USDA 3-8; 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 creeping baby's breath can survive?

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

What hardiness zone is creeping baby's breath?

Creeping Baby's Breath is rated USDA 3-8 and RHS H7 — Hardy in the severest European continental winters.

Can creeping baby's breath survive winter outside?

Plant it out within USDA 3-8 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 creeping baby's breath 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.