Cold hardiness & minimum temperature

Is Intrigue Rose (Rosa 'Intrigue')cold hardy? Hardiness zone & min temp

Also called Intrigue, JACum, Lavaglow.

More about intrigue rose

About Intrigue Rose

Rosa 'Intrigue' · also called Intrigue, JACum · flowering

Rosa 'Intrigue' is a fragrant reddish-purple floribunda rose bred by Jackson & Perkins, prized for clusters of ruffled, citrus-scented blooms from late spring to frost. It thrives in full sun and rich, well-drained soil, reaching about 1 m tall. A reliable bedding rose, it rewards deadheading and steady feeding with repeat flushes.

Cold limit: USDA 6-9 (outdoor garden rose) · RHS H5 (15-27°C)

What intrigue rose's hardiness rating actually means

Yes — intrigue rose is genuinely cold hardy. Rated RHS H5 and USDA 6-9 (outdoor garden rose), 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 6-9 (outdoor garden rose) — 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. Intrigue Rose is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for intrigue rose 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 intrigue rose go outside or overwinter — and where?

Plant it out within USDA 6-9 (outdoor garden rose) 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 intrigue rose can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Intrigue Rose hardiness — frequently asked questions

Is intrigue rose cold hardy?

Yes — intrigue rose is genuinely cold hardy. Rated RHS H5 and USDA 6-9 (outdoor garden rose), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Intrigue Rose is hardy across USDA 6-9 (outdoor garden rose); 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 intrigue rose can survive?

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

What hardiness zone is intrigue rose?

Intrigue Rose is rated USDA 6-9 (outdoor garden rose) and RHS H5 — Hardy in most of the UK and in cold winters.

Can intrigue rose survive winter outside?

Plant it out within USDA 6-9 (outdoor garden rose) 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 intrigue rose 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.