Why Grow Onions?

  • ✅ Essential kitchen staple—flavourful and versatile
  • ✅ Long storage life when harvested correctly
  • ✅ Wide range: brown, red, white, and bunching onions
  • ✅ Attractive blooms that benefit pollinators

Where Can You Grow Them?

Onions prefer full sun, fertile, well-drained soil, and a pH above 6.5. In southern Australia, sow seeds from mid-May to August; in Queensland, from March to June. Best germination occurs at soil temperatures of 10–23 °C, usually taking 7–10 days. Sow 1–2 cm deep, thin to 8–10 cm apart, or transplant seedlings after about 12 weeks. Harvest when tops fall and store in a cool, ventilated spot.
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Health Benefits of Onions

Onions are nutrient-rich and support health with **vitamin C, antioxidants, and fibre**—plus they add flavour without excess calories.

Popular Onion Types

  • Brown/Red/White Bulb Onions: Classic types suited for roasting, salads, stews, and long-term storage.
  • Bunching (Spring) Onions: Fast-maturing, great for year-round harvests of mild, fresh greens.

Ready to Grow Onions?

Our onion seeds are selected for reliable production and adaptability to Australian climates. Whether you’re growing classic storage onions or fast-turnaround bunching types, Seedmart has the seeds to meet your needs.

Shop the full range above and grow fresh, pantry-ready onions from your own garden.