How to grow bower vine
Overview
Bower vine (Pandorea jasminoides) is an evergreen Australian native climber with glossy green leaves and trumpet-shaped pink or white flowers. It is grown to cover fences, arbours, and walls, creating a lush vertical screen. This plant needs a support structure to climb and will not thrive in full shade.
Varieties
- Pandorea jasminoides 'Alba' — White-flowered form, popular for a softer look in Australian gardens.
- Pandorea jasminoides 'Rosea' — Pink flowers with a darker throat, the most common variety in nurseries.
Soil Preparation
Bower vine prefers well-drained, loamy soil with a pH of 6.0–7.0. Enrich with compost or aged manure before planting. If soil is heavy clay, add gypsum and raise the planting bed to improve drainage.
Growing Guide
Plant bower vine in a position with morning sun and afternoon shade, such as an east-facing wall or under a deciduous tree. Space plants 1–2 m apart along a fence or trellis. Dig a hole twice the width of the pot, backfill with compost-enriched soil, and water in well. Mulch the root zone to retain moisture and suppress weeds. Train the main stem onto its support immediately after planting.
Sowing
Sow seeds 5 mm deep in seed-raising mix, keep moist, and germinate in 2–4 weeks at 20–25°C. Direct sow is possible but transplanting gives better control. Seedlings need part shade and consistent moisture until established.
Care
Feed with a balanced slow-release fertiliser (e.g., 10-10-10) in early spring and again in late summer. Prune lightly after flowering to remove spent blooms and maintain shape. Thin out congested stems in winter to improve air circulation and light penetration.
Companion Planting
Grow bower vine with other climbers like star jasmine or wisteria for a mixed screen. Underplant with shade-tolerant perennials such as clivia or liriope. Avoid planting near aggressive root systems like bamboo or large eucalypts that compete for moisture.
Common Pests & Risks
Scale insects appear as brown bumps on stems and leaves; treat with horticultural oil or soap spray. Caterpillars may chew leaves; hand-pick or use Bacillus thuringiensis (Bt) if infestations are heavy. Check regularly for mealybugs in leaf axils.
Troubleshooting
Yellow leaves: overwatering or poor drainage; reduce watering and check soil. Brown leaf edges: low humidity or salt burn; mist leaves and flush soil. No flowers: too much shade or nitrogen; move to brighter spot and use a low-nitrogen fertiliser. Stunted growth: root competition from nearby trees; plant further away. Leaf drop: frost damage; protect with shade cloth in cold snaps.