Commodity growing guides – Onion growing
New South Wales produces about 32,000 tonnes of onions annually. This represents 15% of the total Australian production. About 90% of the state’s onion crop is grown in the Riverina – the region from Griffith and Whitton in the north to Jerilderie in the south. There is also a small but expanding onion industry in the Central West around Wellington and south to Cowra. This fact sheet includes information on variety selection, sowing, site selection, irrigation, nutrition, harvesting and curing, weed control, and pest disease and management.