Cold hardiness & minimum temperature

Is Lavandin (Lavandula x intermedia)cold hardy? Hardiness zone & min temp

Also called Lavandin, Dutch lavender, Hybrid lavender.

More about lavandin

About Lavandin

Lavandula x intermedia · also called Lavandin, Dutch lavender · herb

A naturally occurring and cultivated hybrid between Lavandula angustifolia and L. latifolia, lavandin is larger, more vigorous, and more heat-tolerant than English lavender. Its tall, branched flower stems and strongly camphorous-floral fragrance make it the dominant lavender of the French and Spanish essential-oil industry. Superb for large garden borders, hedging, and dried flower production.

Cold limit: USDA 5–8 · RHS H5 (-15 to 38°C)

Watch for — Frost damage to new growth: Late frosts can damage new spring growth, especially after premature pruning. Prune after the last frost date; in borderline-hardy zones (5–6) protect crowns with a dry mulch of grit or coarse bark in winter.

What lavandin's hardiness rating actually means

Yes — lavandin is genuinely cold hardy. Rated RHS H5 and USDA 5–8, 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 5–8 — 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 about −15 to −10 °C. Lavandin is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for lavandin 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 lavandin go outside or overwinter — and where?

Plant it out within USDA 5–8 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 lavandin can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Lavandin hardiness — frequently asked questions

Is lavandin cold hardy?

Yes — lavandin is genuinely cold hardy. Rated RHS H5 and USDA 5–8, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Lavandin is hardy across USDA 5–8; 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 lavandin can survive?

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

What hardiness zone is lavandin?

Lavandin is rated USDA 5–8 and RHS H5 — Hardy in most of the UK and in cold winters.

Can lavandin survive winter outside?

Plant it out within USDA 5–8 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 lavandin 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.