Onion at the supermarket
Averaging $2.66/kg right now (08/09/2026)
→ 0% per month
Price has held steady over the 6 months on file.
6 months of onion price history
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Track onion prices, or grow your own
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Worth growing your own?
A $1.50 seed packet can grow roughly $30 worth of onion over a season at today's price of $2.66/kg, from about 11.3 kg off a 4 m² bed.
Best-case estimate, assumes a full, healthy crop and counts only the seed cost (not water, time, or losses). Yield based on a 4 m² home garden bed. Yield source: NSW DPI Vegetable Growing Guide — Alliums; Gardenate AU. Supermarket value uses today's live price from this page. Seed price scraped 18/04/2026.
Grow it yourself. The onion planting guide is free and written per climate zone. Pick your zone, or enter a postcode and we pick it for you.
Handy garden supplies
A few things that make growing easier, from Amazon Australia.
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Pests to watch for
Australian pests and diseases that target onion. Full library.