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How to Care for Syzygium smithii (Lilly Pilly)

The Syzygium smithii, commonly known as the lilly pilly, is a versatile and attractive plant widely celebrated for its glossy foliage, vibrant berries, and suitability for hedging. Native to Australia, it has gained popularity in gardens across the world for its aesthetic appeal and resilience. Proper care ensures it thrives, whether you’re growing it as a screen, topiary, or ornamental feature.

Selecting the Ideal Location

Lilly pilly plants flourish in full sun to partial shade. Choose a well-drained soil enriched with organic matter for optimal growth. Though tolerant of a variety of conditions, including coastal areas, they perform best when shielded from harsh winds and salt spray.

Planting Tips

• Timing: Plant in spring or autumn to allow the roots to establish before extreme weather sets in.
• Spacing: When planting a hedge, space them 1 to 2 metres apart to allow for growth while achieving a dense screen.
• Hole Preparation: Dig a hole twice as wide as the root ball and slightly deeper. Backfill with a mixture of native soil and compost.

Watering and Mulching

Consistent watering is essential, particularly during the first year as the plant establishes itself. Once mature, lilly pillies are drought-tolerant, but regular watering during dry spells helps maintain lush foliage. Apply a 5 cm layer of mulch around the base to retain moisture and suppress weeds. Keep mulch away from the stem to prevent rot.

Pruning for Shape and Health

Lilly pilly responds well to pruning, making it ideal for hedges or topiary. Prune in late winter or early spring to encourage new growth. Regular trimming keeps the plant dense and tidy while removing dead or diseased branches improves overall health.

Fertilising for Vigour

Feed lilly pilly plants with a slow-release, low-phosphorus fertiliser designed for natives. Apply in spring and autumn to encourage vibrant growth and flowering. Adding a layer of well-rotted compost annually enhances soil fertility.

Pest and Disease Management

While generally hardy, lilly pilly plants can be affected by:

• Psyllids: These small insects cause unsightly bumps on leaves. Opt for resistant cultivars or treat infestations with horticultural oil.
• Fungal Issues: Ensure good airflow by spacing plants appropriately and avoid overhead watering. Treat fungal infections with a fungicide as needed.

Harvesting and Uses

The berries of Syzygium smithii are edible and can be used to make jams, sauces, or chutneys. Harvest them when they turn a deep magenta hue. Besides culinary uses, the plant provides excellent habitat for birds and beneficial insects.

Sustainability Note

As a native species, Syzygium smithii supports biodiversity and requires fewer inputs compared to exotic plants. Incorporating lilly pilly into your garden contributes to ecological balance and offers a sustainable landscaping solution.

By following these guidelines, your lilly pilly will thrive, bringing beauty and utility to your garden for years to come. Whether you’re after a lush hedge, a wildlife-friendly addition, or simply a plant with year-round interest, the Syzygium smithii is an outstanding choice.

For all plant enquiries and availability, please contact: Nursery Manager – Richard Burrell at richard.burrell@murumittigar.com.au.