Beetroot — How to Grow Beetroot in Australia

☀️ Sun

Full Sun

💧 Water

Medium

↔ Spacing

10cm apart

↕ Height

Up to 40cm

📅 Harvest

60 days

Growing Guide

Beetroot thrives across temperate, cool temperate, Mediterranean, and subtropical Australian climates, with planting times varying by region. In temperate and Mediterranean zones, sow seed in autumn (March–May) and spring (September–November) for best results. In subtropical areas, autumn and winter (June–August) sowings are ideal, avoiding the peak wet season. In cool temperate regions, focus on spring through early autumn plantings once frost risk has passed.

Soil Preparation: Beetroot prefers deep, loose, well-drained soil with a pH of 6.0–7.0. Dig beds to at least 30cm, remove stones, and incorporate well-aged compost or manure. Avoid fresh manure, which can cause forked, hairy roots.

Sowing: Sow seed clusters (each contains 2–3 seeds) directly into the ground at a depth of 1–2cm, spaced 10cm apart in rows 30cm apart. Soak seeds in water for an hour before planting to improve germination. Thin seedlings to the strongest plant once they reach 5cm tall.

Watering: Maintain consistent, medium moisture — roughly 2–3 times per week in warmer weather. Irregular watering causes woody or cracked roots. Mulch well to retain soil moisture.

Feeding: Apply a balanced fertiliser at planting, then feed fortnightly with a liquid potassium-rich fertiliser once plants establish.

Harvesting: Roots are typically ready in 8–10 weeks when they reach golf ball to tennis ball size (5–8cm diameter). Twist or cut leaves 3cm above the root to prevent bleeding. Don't leave them too long — oversized roots become tough and woody.

🤝 Good Companions

Beetroot grows exceptionally well alongside garlic onions and lettuce — the alliums help repel aphids and other pests while lettuce acts as a living mulch to retain soil moisture. Brassicas like kale also make good neighbours as beetroot's deep roots and brassicas' shallow roots use different soil layers without competing.

❌ Avoid Planting With

Avoid planting beetroot near climbing beans or silverbeet (Swiss chard) as beans can inhibit beetroot's growth and silverbeet being in the same family competes directly for the same soil nutrients and can encourage shared pest and disease pressures.

🐛 Pests & Diseases

In Australian gardens, beetroot is commonly troubled by leaf miners, which create pale tunnelling trails through leaves and can be managed by removing affected foliage promptly and using fine insect-exclusion netting. Cercospora leaf spot, a fungal disease causing circular brown spots with reddish borders, is encouraged by humid conditions — improve air circulation and avoid overhead watering, applying a copper-based organic spray if outbreaks are severe. Aphids may cluster on young growth and are best controlled with a strong jet of water or a spray of diluted neem oil.

🌱 Fertilising

Apply a complete, balanced organic fertiliser or well-composted manure at bed preparation, then feed every two weeks with a liquid potassium and phosphorus-rich fertiliser such as liquid seaweed and fish emulsion blend once roots begin to swell. Avoid high-nitrogen feeds mid-season, as these encourage lush leafy growth at the expense of root development — a common mistake in Australian vegetable gardens.

✂️ Pruning & Training

Beetroot does not require traditional pruning, but regularly harvesting outer leaves to use as nutritious greens encourages the plant to focus energy into root development. If leaves become tatty, yellowed, or affected by disease, remove them cleanly at the base to maintain good airflow and plant vigour.

🔬 Propagation

Beetroot is propagated exclusively from seed, which is sown directly into prepared garden beds or deep containers rather than transplanted, as beetroot dislikes root disturbance. Each seed cluster naturally contains multiple seeds, so soak them briefly before sowing and thin emerging seedlings early to ensure the strongest plant has room to develop a well-formed, unobstructed root.

🗓 When to Plant

All

🌾 Harvest

All

🌏 Australian Climates

Temperate Cool Temperate Mediterranean Subtropical

More Vegetables

Tomato → Lettuce → Broad Bean → Spinach → Garlic → Pumpkin →