Spring Onions and Shallots: Year-Round Harvest in Australia

Spring Onions and Shallots: Year-Round Harvest in Australia

Spring onions and shallots are among the easiest crops to grow in Australia. Learn growing from seed vs dividing clumps, and how to keep a permanent shallot patch productive indefinitely. This guide is written specifically for Australian gardeners, covering local varieties, climate-specific timing, and techniques that work in Australian soils and conditions. Whether you're in Queensland's subtropical heat or Tasmania's cool temperate climate, you'll find actionable advice tailored to your region.

Understanding the Difference: Spring Onions vs Shallots

Many Australian gardeners use the terms "spring onions" and "shallots" interchangeably, and the confusion is completely understandable. In Australia, the long green-stemmed bunching onions sold at supermarkets are commonly called shallots, while in other parts of the world the same plant might be called a spring onion or scallion. True shallots, on the other hand, are a distinct species (Allium cepa var. aggregatum) that form clusters of small, teardrop-shaped bulbs with a more delicate, sweet flavour than regular onions.

For the purposes of this guide, we'll cover both: the bunching spring onions perfect for continuous harvesting, and the true cluster shallots that reward you with multiplying bulbs season after season. Both are wonderfully low-maintenance, and once you have them established in your garden, you'll rarely be without a fresh harvest.

Best Varieties for Australian Gardens

Spring Onion Varieties

• White Lisbon: The most popular spring onion variety in Australia. It's fast-growing, hardy, and performs well across all climate zones from Darwin to Hobart.
• Bunching Onion (Allium fistulosum): A perennial favourite in Queensland and New South Wales gardens. It tolerates humidity exceptionally well and rarely bolts.
• Evergreen Hardy White: An excellent choice for cooler climates including Victoria, Tasmania, and the ACT. It handles frost well and produces prolifically through winter.
• Red Baron: A striking red-stemmed variety that adds colour to the garden and the plate. Performs best in temperate zones including Adelaide and Perth.

True Shallot Varieties

• French Red Shallots: The classic variety with copper-pink skin and a rich, complex flavour. Widely available across Australia and well-suited to most temperate regions.
• Dutch Yellow Shallots: A mild, productive variety that multiplies generously. Popular in Victoria and South Australia for its reliable yields.
• Banana Shallots: Elongated and easy to peel, these are a favourite amongst Australian home cooks and grow beautifully in well-drained soils.
• Asian Shallots (Eschalots): Thriving in Queensland's tropical and subtropical conditions, these are commonly used in South-East Asian cooking and are extremely heat-tolerant.

Climate-Specific Planting Guides

Queensland and Northern Territory (Tropical and Subtropical)

In tropical and subtropical regions, the dry season (April to September) is your prime growing time for shallots and spring onions. The wet season (October to March) brings heavy rainfall and high humidity that can encourage fungal diseases and rot. Focus your planting in autumn (March to May) for the best results. In northern Queensland and the NT, you may need to grow in raised beds or containers to ensure adequate drainage during the wet.

New South Wales and ACT

In coastal New South Wales, spring onions can be planted almost year-round, with a slight pause during the hottest weeks of summer (December to February) in western areas. In the ACT, the cooler winters mean planting is best done from late winter (August) through autumn (April). Both spring onions and shallots thrive here with minimal fuss.

Victoria and Tasmania

These cooler states are ideal for growing both spring onions and true shallots. Plant shallot bulbs in autumn (March to May) for a late spring harvest. Spring onions can be sown in successive plantings from late winter through to autumn for a continuous harvest. Tasmania's cool summers are particularly well-suited to shallots, which can bolt in excessive heat.

South Australia and Western Australia

In the Mediterranean-style climates of Adelaide and Perth, the ideal planting window for shallots is autumn through to early winter (March to June). Spring onions can be grown year-round in coastal WA, though summer sowings benefit from afternoon shade. Inland areas of both states experience more extreme temperatures, so stick to cooler season plantings.

Growing from Seed vs Dividing Clumps

Growing Spring Onions from Seed

Growing spring onions from seed is economical and rewarding. Sow seeds directly into garden beds or containers, about 1 cm deep and 2 cm apart in rows spaced 15–20 cm apart. Seeds germinate within 7–14 days in warm soil. Thin seedlings to around 5 cm apart once they reach 5 cm in height, and use the thinnings as your first harvest.

Successive sowing every 3–4 weeks ensures a continuous supply throughout the growing season. A single packet of seeds can keep a family in spring onions for an entire season.

Dividing Shallot Clumps

True shallots are typically grown from bulbs rather than seed. Plant individual bulbs or cloves with the pointed end facing up, burying them just below the soil surface. Each bulb will multiply into a cluster of 6–10 new bulbs by harvest time.

Once you have an established shallot patch, you can divide the clumps at harvest to replant a portion for the next season. This self-perpetuating system is one of the greatest rewards of growing shallots.