Cold hardiness & minimum temperature

Is Moorcroft's Sage (Salvia moorcroftiana)cold hardy? Hardiness zone & min temp

Also called Moorcroft's Sage, Kashmir Sage, Himalayan Sage, Ladakhi Sage.

More about moorcroft's sage

About Moorcroft's Sage

Salvia moorcroftiana · also called Moorcroft's Sage, Kashmir Sage · flowering

Salvia moorcroftiana is a herbaceous perennial native to the Himalayan mountains from Pakistan to western Nepal, growing on open slopes and disturbed ground between roughly 1,500–2,700 m elevation, where it is particularly common in the Kashmir Valley. It demands full sun and excellent drainage — especially a light, gritty soil — and will rot over winter in heavy, wet ground. The single most important care fact is providing perfectly drained soil; this species tolerates temperatures to around −15°C when dormant in dry conditions but will die in cold wet soil. The genus Salvia is listed as non-toxic to cats, dogs, and horses by the ASPCA.

Cold limit: USDA 5-9 · RHS H5 (-15–30°C (dormant tolerance to −15°C in dry conditions))

Watch for — Winter wet rot: The most common killer of this species in UK gardens is cold, waterlogged soil in winter; plant in raised beds or add ample grit to the planting hole, and consider a dry winter mulch over the crown.

What moorcroft's sage's hardiness rating actually means

Yes — moorcroft's sage is genuinely cold hardy. Rated RHS H5 and USDA 5-9, 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 5-9 — 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 about −15 to −10 °C. Moorcroft's Sage is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for moorcroft's sage 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 moorcroft's sage go outside or overwinter — and where?

Plant it out within USDA 5-9 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 moorcroft's sage can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Moorcroft's Sage hardiness — frequently asked questions

Is moorcroft's sage cold hardy?

Yes — moorcroft's sage is genuinely cold hardy. Rated RHS H5 and USDA 5-9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Moorcroft's Sage is hardy across USDA 5-9; 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 moorcroft's sage can survive?

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

What hardiness zone is moorcroft's sage?

Moorcroft's Sage is rated USDA 5-9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can moorcroft's sage survive winter outside?

Plant it out within USDA 5-9 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 moorcroft's sage 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.