How to grow privet
Overview
Privet (Ligustrum sinense) is a fast-growing evergreen shrub commonly used for hedging and screening in Australian gardens. It produces small white flowers in spring followed by black berries that are toxic to humans and pets. Important: check its weed status locally before planting, as it can become invasive in bushland areas.
Varieties
- Sunshine — Golden-yellow foliage that brightens a hedge, growing to 2–3m tall.
- Variegatum — Creamy-white margins on leaves, slower growth, suitable for smaller gardens.
- Compactum — Dwarf form reaching 1–2m, ideal for low borders or containers.
Soil Preparation
Prefers well-drained loamy soil with pH 5.5–7.5. Incorporate organic matter before planting. Avoid waterlogged or heavy clay soils; improve drainage if necessary.
Growing Guide
Plant privet in well-drained soil in a position with morning sun and afternoon shade. Space plants 30–60 cm apart for a dense hedge. Water deeply until established, then moderately. Prune twice a year, in late winter and after flowering, to maintain shape. Avoid planting in areas where it may spread into native vegetation.
Care
Feed with a balanced slow-release fertiliser in early spring and again in autumn. Prune twice a year to maintain density and shape. Remove any dead or crossing branches. Mulch around base to retain moisture and suppress weeds.
Companion Planting
Privet is often used as a backbone hedge. Pair with flowering shrubs like Camellia japonica or Gardenia jasminoides for contrast. Avoid planting near native bushland due to invasive potential.
Common Pests & Risks
Scale insects, aphids, and thrips are common. Treat infestations with horticultural oil or insecticidal soap. Encourage beneficial insects like ladybirds. Monitor regularly, especially in warm months.
Troubleshooting
Yellow leaves: often due to poor drainage or waterlogging; improve soil drainage. Leaf spot: fungal disease in humid conditions; improve air circulation and remove affected leaves. Scale infestation: sticky honeydew and sooty mould; treat with horticultural oil. Sparse growth: insufficient light; move to a brighter spot or prune to increase light penetration. Invasive spread: control by regular clipping and removing berries.