Topiary Star Jasmine (Cone)
Botanical Name: Trachelospermum jasminoides (Cone)
Family: Apocynaceae
Origin: East Asia
Plant Type: Evergreen shrub (climber trained as a topiary cone)
Overview
Star Jasmine clipped into a sleek, fragrant cone gives instant elegance for Adelaide gardens. Glossy leaves bronze to burgundy in winter, then flush fresh green as weather warms. In late spring–summer (and often again in early autumn), masses of pure white, starry blooms release a head-turning perfume, perfect for entries, patios and statement pots.
Key Features
-
Mature Size: 1.2–2.0 m H × 0.5–0.8 m W as a maintained cone (naturally a climber if untrained)
-
Growth Rate: 30-60 cm per year under good conditions
-
Foliage: Glossy, leathery leaves; tight internodes for crisp outlines
-
Flowers: White, pinwheel/star-shaped clusters mainly late spring–summer, with spot rebloom in warm spells
-
Seasonal Interest: Evergreen geometry year-round; winter foliage colour + long, heavily scented bloom in warm months
-
Wildlife Value: Nectar for bees and other pollinators
-
Tolerance: Drought- and heat-tolerant once established; wind & coastal capable; light frost hardy; avoid waterlogging
-
Planting Density: Feature/topiary row: space 0.8–1.2 m • Containers: one per 40–50 cm pot with sturdy cone/frame
-
Pet Friendly: Yes — generally non-toxic; discourage chewing (may cause mild tummy upset)
Where It Works Best
-
Sunlight: Full sun to part shade (more sun = more flowers & tighter cone)
-
Soil: Well-drained loam, sandy loam or improved clay; mound in heavy sites
-
Water Needs: Establishment: 2 deep soaks/week for 8–12 weeks. Established: deep soak every 10–14 days in summer (more in heatwaves/pots); monthly in winter if dry
-
Maintenance: Tip-clip 3–6×/yr to follow the cone; light trim after flowering to tidy and encourage rebloom; tie in stray shoots to the frame; feed early spring; rotate pots quarterly for even sun
-
Lifespan: 20-30+ years
-
Climate Zones: Suited to temperate and Mediterranean SA gardens, including coastal areas
-
Soil pH: Slightly acidic to mildly alkaline
Landscape & Design Ideas
- Paired scented cones flanking doors, gateways and outdoor rooms
- Premium containers for patios and courtyards (perfume near seating)
- Repeat along paths/walls for a formal, evergreen rhythm with seasonal fragrance
Why You Will Love It
A high-impact, low-maintenance topiary that perfumes the whole space in bloom and brings year-round glossy structure with attractive winter tints. Built for Adelaide conditions, it stays neat with quick clips and thrives equally in the ground or in statement pots.
