Cold hardiness & minimum temperature

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

Also called Veterans' Honor, JACcofl.

More about veterans' honor rose

About Veterans' Honor Rose

Rosa 'Veterans' Honor' · also called Veterans' Honor, JACcofl · flowering

Veterans' Honor is a deep velvety-red hybrid tea introduced by Jackson & Perkins in 1999, with large high-centred blooms on long, near-thornless stems and a light raspberry fragrance. Disease-resistant and a superb cut rose, it flowers in repeat flushes. Grow in full sun with fertile, well-drained soil for the best colour and stem length.

Cold limit: USDA 5-9 (outdoor garden rose) · RHS H6 (15-26°C)

What veterans' honor rose's hardiness rating actually means

Yes — veterans' honor rose is genuinely cold hardy. Rated RHS H6 and USDA 5-9 (outdoor garden rose), it lives outdoors all year and needs winter cold rather than protection from it. Its RHS rating of H6 means: Hardy throughout the UK and northern Europe. On the US scale that maps to USDA 5-9 (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 −20 to −15 °C. Veterans' Honor Rose is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for veterans' honor rose as it gets too cold:

It tolerates winter lows to about −20 to −15 °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 veterans' honor rose go outside or overwinter — and where?

Plant it out within USDA 5-9 (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 veterans' honor rose can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H6 figure above.

Veterans' Honor Rose hardiness — frequently asked questions

Is veterans' honor rose cold hardy?

Yes — veterans' honor rose is genuinely cold hardy. Rated RHS H6 and USDA 5-9 (outdoor garden rose), it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Veterans' Honor Rose is hardy across USDA 5-9 (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 veterans' honor rose can survive?

Minimum survivable temperature is roughly about −20 to −15 °C. Veterans' Honor Rose is built for winter — once established it takes hard frost and snow in its stride.

What hardiness zone is veterans' honor rose?

Veterans' Honor Rose is rated USDA 5-9 (outdoor garden rose) and RHS H6 — Hardy throughout the UK and northern Europe.

Can veterans' honor rose survive winter outside?

Plant it out within USDA 5-9 (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 veterans' honor rose below its minimum temperature?

It tolerates winter lows to about −20 to −15 °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.