Plot

When to plant and prune Star jasmine

Star jasmine flowers from mid June to late August and the dates below cover planting, flowering and the pruning window.

Trachelospermum jasminoides · Medium to grow

Planting, flowering and pruning by region

Star jasmine is grown to the calendar rather than to the frost, so the same dates apply across the whole UK and every region below reads the same. Where a plant’s timings do follow the frost, Plot shifts them from the Midlands and Lowland Wales baseline using Met Office average frost dates.

Where you arePlantIn flowerPrune
South West Coast and Cornwalllate March to mid Maymid June to late Augustlate March to mid April
South Coast and Channellate March to mid Maymid June to late Augustlate March to mid April
Greater London (Urban Heat Island)late March to mid Maymid June to late Augustlate March to mid April
South East and Home Countieslate March to mid Maymid June to late Augustlate March to mid April
East Anglialate March to mid Maymid June to late Augustlate March to mid April
Midlands and Lowland Waleslate March to mid Maymid June to late Augustlate March to mid April
Wales and West Coastlate March to mid Maymid June to late Augustlate March to mid April
Northern Englandlate March to mid Maymid June to late Augustlate March to mid April
Scotland Lowlands and Central Beltlate March to mid Maymid June to late Augustlate March to mid April
Scotland Highlands and Islandslate March to mid Maymid June to late Augustlate March to mid April
Northern Irelandlate March to mid Maymid June to late Augustlate March to mid April
Channel Islands and Isle of Manlate March to mid Maymid June to late Augustlate March to mid April

Growing notes

Twining stems have nothing to grip with, so fix horizontal wires or a trellis to the wall before planting. Slow growing and richly scented, so it earns a place beside a door or seat on a south or west wall.

At a glance

Spacing
150 cm between plants
Eventual height
400 cm
Eventual spread
250 cm
Hardiness
H4
Sun
Full
Frost tender
No
Grows in a container
Yes, 40 litres or more
Balcony rating
4 out of 5

Feeding

Container plants: liquid feed through spring and summer; border plants need little more than a spring mulch.

Pruning group

Light maintenance prune in spring only: shorten wayward shoots and tie in. Renovate by cutting back by two-thirds in spring.

Winter protection

In colder or frost-prone gardens mulch thickly over the root zone in autumn, wrap containers, and cover with fleece in harsh weather; in very cold areas grow it in a pot and bring it under cover for winter.

What usually goes wrong

Related guides

Timings cross-checked against RHS guidance for star jasmine.