Finger Lime — How to Grow Finger Lime in Australia

☀️ Sun

Part Shade

💧 Water

Medium

↔ Spacing

200cm apart

↕ Height

Up to 4m

📅 Harvest

365 days

Growing Guide

Plant Finger Limes in spring (September–November) or early autumn (March–April) when soil temperatures are warm but extreme heat has passed, giving roots time to establish comfortably.

Soil Preparation: Finger Limes prefer free-draining, slightly acidic soil (pH 5.5–6.5). Incorporate generous amounts of compost and aged organic matter before planting. Avoid heavy clay — if drainage is poor, plant in a raised bed or mound.

Watering: Water deeply but infrequently, allowing the top few centimetres of soil to dry between waterings. During summer, water every 5–7 days; reduce to fortnightly in cooler months. Apply a thick mulch of leaf litter or wood chips 10cm away from the trunk to retain moisture and regulate soil temperature.

Feeding: Fertilise in early spring and again in late summer with a slow-release native or citrus fertiliser low in phosphorus. Avoid high-phosphorus formulas, which can harm native plants.

Sunlight: Position in part shade to filtered sunlight. In temperate zones, morning sun with afternoon shade is ideal. In subtropical climates, dappled light under taller trees works well.

Harvest Tips: Fruits ripen from autumn through winter (April–August). Harvest when the fruit detaches easily with a gentle twist — colour alone isn't always a reliable indicator of ripeness. Handle gently to preserve the delicate juice vesicles inside. Refrigerate promptly after picking for best quality.

🤝 Good Companions

Plant Finger Limes alongside Lemon Myrtle Lomandra Grevillea and Lilly Pilly — these companions create a layered canopy that provides beneficial shade attracts native pollinators and improves overall garden biodiversity. Lomandra's dense root system also helps suppress weeds and stabilise soil moisture around the shallow feeder roots of the Finger Lime.

❌ Avoid Planting With

Avoid planting Finger Limes near heavy phosphorus-feeding plants such as roses or conventional fruit trees that require regular high-phosphorus fertilising as nutrient runoff can cause phosphorus toxicity and decline in the Finger Lime. Keep them away from walnut trees which produce juglone — a compound toxic to many plants including citrus relatives.

🐛 Pests & Diseases

The main pests to watch for include citrus leafminer, which causes distinctive silvery tunnelling on new leaves, and bronze orange bugs, which appear in spring and can be removed by hand (wear gloves) or controlled with horticultural oil spray. Scale insects and sooty mould can also appear — treat with white oil or neem oil applied to affected stems and foliage, repeating every 2 weeks until resolved.

🌱 Fertilising

Feed with a certified low-phosphorus native plant fertiliser or a specialised citrus fertiliser in early spring (September) and again in late summer (February) to support flowering and fruiting. Supplementing with well-composted organic matter and a liquid seaweed tonic every 6–8 weeks throughout the growing season encourages strong root development and fruit set.

✂️ Pruning & Training

Prune lightly after the main harvest period in late winter (August) to maintain shape, remove crossing branches, and encourage fresh productive growth for the coming season. Avoid heavy pruning — Finger Limes fruit on older wood, so removing too much established growth will reduce your yield; focus on thinning rather than cutting back hard.

🔬 Propagation

Finger Limes are most reliably propagated from semi-hardwood cuttings taken in late summer (February–March), treated with rooting hormone and struck in a free-draining propagating mix kept consistently moist in a warm, sheltered position. They can also be grown from fresh seed, though seed-grown plants may take 7–15 years to fruit and will not reliably reproduce the parent plant's characteristics, making cuttings or grafted nursery stock the preferred choice for home gardeners.

🗓 When to Plant

Spring

🌾 Harvest

All

🌏 Australian Climates

Subtropical Temperate

More Natives

Native Violet → Grevillea → Kangaroo Paw → Warrigal Greens → Banksia → Pigface →