How to grow violet westringia
Overview
Violet Westringia is a compact Australian native shrub grown for its dense foliage and subtle violet flowers. It is ideal for hedging, borders, and dry gardens, providing year-round structure and texture. It tolerates light frost and drought once established.
Soil Preparation
Prefers slightly acidic to neutral pH (6.0–7.0). Requires free-draining soil; sandy loam or gravelly soils are ideal. If planting in clay, incorporate gypsum and organic matter to improve drainage.
Growing Guide
Plant in well-drained soil in a position with morning sun and afternoon shade. Space plants 60–90 cm apart for a hedge. Water deeply until established, then reduce frequency. Light pruning after flowering encourages bushiness. Avoid heavy clay soils.
Care
Feed with a slow-release native fertiliser in early spring. Prune lightly after flowering to maintain shape and remove spent flower heads. Cut back any leggy growth to promote density and remove dead wood.
Companion Planting
Pairs well with Correa alba, Grevillea 'Poorinda Royal Mantle', and Kangaroo Paw. Avoid planting next to heavy feeders like citrus that may compete for nutrients. Also works well with other dry-tolerant natives such as Hakea and Emu Bush.
Common Pests & Risks
Scale insects may appear on stems; treat with horticultural oil. Root rot can occur in poorly drained soils; ensure good drainage. Whiteflies and aphids are occasional but rarely serious. Prune out infested branches to improve air circulation.
Troubleshooting
Yellow leaves: usually indicates overwatering or poor drainage; reduce water and improve soil. Brown leaf tips: caused by salt burn or dry conditions; flush soil with water and mulch. Sparse growth: lack of light; move to brighter position. Dieback: may be due to root rot; remove affected parts and improve drainage. Scale on stems: treat with white oil.