Cold hardiness & minimum temperature

Is Parker's jasmine (Jasminum parkeri)cold hardy? Hardiness zone & min temp

Also called Parker's jasmine, Dwarf jasmine.

More about parker's jasmine

About Parker's jasmine

Jasminum parkeri · also called Parker's jasmine, Dwarf jasmine · flowering

Parker's jasmine is a compact, dwarf evergreen shrub native to the northwest Himalayas of India. It forms a neat, dense mound of fine, pinnate foliage studded with small, lightly scented yellow flowers in early summer. Exceptionally hardy and slow-growing, it is ideal for rock gardens, alpine troughs, containers, or front-of-border planting in temperate gardens.

Cold limit: USDA 6-9 · RHS H5 (-10–28°C)

Watch for — Root rot in wet or heavy soil: The most significant risk for this species. Poorly drained or compacted soil, especially in winter, causes root rot rapidly. Always plant in sharply draining conditions; raise in beds with grit incorporated if drainage is suspect.

What parker's jasmine's hardiness rating actually means

Yes — parker's jasmine is genuinely cold hardy. Rated RHS H5 and USDA 6-9, 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 6-9 — 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. Parker's jasmine is built for winter — once established it takes hard frost and snow in its stride.

Concretely, for parker's jasmine 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 parker's jasmine go outside or overwinter — and where?

Plant it out within USDA 6-9 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 parker's jasmine can be outside. US growers can check USDA zones; UK growers should use the RHS hardiness ratings, which match the H5 figure above.

Parker's jasmine hardiness — frequently asked questions

Is parker's jasmine cold hardy?

Yes — parker's jasmine is genuinely cold hardy. Rated RHS H5 and USDA 6-9, it lives outdoors all year and needs winter cold rather than protection from it. An outdoor plant. Parker's jasmine is hardy across USDA 6-9; 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 parker's jasmine can survive?

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

What hardiness zone is parker's jasmine?

Parker's jasmine is rated USDA 6-9 and RHS H5 — Hardy in most of the UK and in cold winters.

Can parker's jasmine survive winter outside?

Plant it out within USDA 6-9 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 parker's jasmine 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.