How to grow star jasmine
Overview
Star jasmine is a twining evergreen vine grown for its highly fragrant white flowers and glossy foliage. It softens fences, pergolas, and walls, adding vertical interest. Key to success is placing it in part shade with consistently moist but well-drained soil.
Varieties
- Variegata — Notable for cream and green variegated leaves, adding year-round foliage interest.
- Tricolor — New foliage emerges pink and cream, maturing to variegated green and white.
- Star of Toscane — Produces larger, more profuse flowers than the species, with strong fragrance.
Soil Preparation
Star jasmine prefers slightly acidic to neutral soil (pH 6.0–7.5) rich in organic matter. Ensure excellent drainage – add compost and coarse sand or gypsum to heavy clay soils. A loamy, well-drained mix is ideal; avoid waterlogged sites.
Growing Guide
Plant star jasmine in part-shade with protection from harsh afternoon sun, ideally against a support like a trellis or wire frame. Space plants 1–2 metres apart for coverage. Dig a hole twice the root ball, backfill with organic compost, and water deeply after planting. Mulch well to retain moisture; water regularly during the first year until established. Avoid heavy clay soils or improve drainage with gypsum and compost.
Care
Feed in early spring and again in summer with a balanced slow-release fertiliser. Prune lightly after flowering to shape and remove dead or tangled stems; train new growth onto supports. Renew mulch annually around the base to suppress weeds and keep roots cool.
Companion Planting
Good on fences screens and pergolas
Common Pests & Risks
Scale insects and mealybugs are common; they secrete honeydew that leads to sooty mould. Control with horticultural oil or insecticidal soap in early infestations. Watch for aphids on new growth; blast off with water or use neem oil. Avoid overwatering which can attract fungal issues.
Troubleshooting
Yellow leaves: often overwatering or poor drainage; reduce watering and improve soil aeration. Brown leaf edges: underwatering or low humidity; increase water and mist foliage in dry spells. No flowers: insufficient light or over-fertilising with nitrogen; move to brighter part shade or reduce nitrogen. Scale/sooty mould: treat pests with horticultural oil; wipe off sooty mould with soapy water. Leggy growth: prune back in early spring to encourage bushier habit.