How to grow wombat berry
Overview
Wombat berry is a vigorous climbing vine from eastern Australia, grown for its edible tubers and attractive foliage. It thrives in part-shade positions and requires a sturdy support like a trellis or fence. Unlike many edible climbers, it tolerates moist, sheltered conditions and produces small white flowers followed by orange berries (the tubers are the real harvest).
Soil Preparation
Prefers a slightly acidic to neutral soil (pH 5.5–6.5) that is rich in organic matter and free-draining. Dig in well-rotted compost or leaf mould before planting. For heavy soils, raise the planting bed or add coarse sand and gypsum to improve drainage.
Growing Guide
Plant wombat berry in dappled shade or morning sun with protection from harsh afternoon heat. It prefers a consistently moist, well-drained loam enriched with organic matter. Space vines 2–3 m apart along a trellis, fence, or sturdy shrub for support. Lay a thick organic mulch around the root zone to conserve moisture and suppress weeds. Avoid planting in heavy clay or areas prone to waterlogging. Established plants are moderately drought-tolerant but produce larger tubers with regular watering through spring and summer.
Sowing
Scarify seeds by nicking the hard coat or soak in warm water for 24 hours before sowing. Sow 1 cm deep in spring (Sept–Nov) in seed trays or direct into a prepared bed. Germination may take 4–8 weeks at 20–25°C. Alternatively, propagate from stem cuttings or division of established clumps.
Care
Apply a balanced native fertiliser in early spring and again in midsummer to support tuber growth. After harvest, prune back spent stems to the main framework to encourage fresh growth the following season. Train new shoots onto the support regularly to maintain an organised structure and prevent tangling.
Companion Planting
Good companions include other bush tucker plants like lilly pilly (Syzygium smithii), muntries (Kunzea pomifera), and warrigal greens (Tetragonia tetragonioides) – all thrive in similar part-shade, moist conditions. Avoid planting near aggressive running bamboos or large trees that will outcompete for moisture and light.
Common Pests & Risks
Snails and slugs can damage young shoots and foliage in damp conditions – hand-pick or use iron-based baits. Caterpillars of the grapevine moth may occasionally feed on leaves; remove by hand or apply Bacillus thuringiensis. Root rot can occur in poorly drained soils – ensure good drainage and avoid overwatering.
Harvesting
Tubers are ready to dig in late autumn to winter after the foliage naturally dies back. Carefully lift the soil around the base to avoid damaging the tuber cluster. Leave some small tubers in place to regrow the following season. Wash and store in a cool, dark place or use fresh within a few weeks.
In the Kitchen
Wombat berry tubers have a mild, nutty flavour and can be boiled, roasted, or mashed like potato. They are best harvested after foliage dies back – store unwashed in a cool, dark place for up to 2 months. Always positively identify tubers as edible before consumption, as some look-alikes may be toxic.
Troubleshooting
Yellowing leaves: often caused by overwatering or poor drainage – reduce water and improve soil aeration. Lack of tubers: may result from insufficient sun (too deep shade) or competition from weeds – provide part-sun and keep root zone clear. Stunted growth: check for soil compaction or nutrient deficiency – apply a native fertiliser and loosen soil. Leaf spots: fungal issue in humid weather – improve airflow and avoid overhead watering. Frost damage: blackened young shoots – protect with shade cloth or plant in a sheltered microclimate.