South Australia

South Australia is one of Australia’s major potato producing states and an important supplier of fresh potatoes to the national market. In 2022–23, the state produced approximately 433,008 tonnes, accounting for 29.6% of Australia’s total potato production, with a farm-gate value of about USD 305.9 million. The major production areas include the Riverland and Murray Mallee, South East and Northern Adelaide Plains, supported by irrigation, sandy soils and different climatic conditions that allow production across much of the year.

The Riverland and Murray Mallee form one of the state’s most important potato growing zones, while the South East, centred around areas such as Mount Gambier, Penola and Kalangadoo, remains significant for both commercial and seed production. The Northern Adelaide Plains around Virginia historically became an important production area because of its light soils, low frost risk, irrigation availability and suitability for mechanized production. Together, these regions provide different growing conditions that help growers maintain supplies of fresh potatoes across different seasons.

South Australia has a diverse potato industry covering fresh-market potatoes, processing potatoes, crisping potatoes and certified seed potatoes. Modern production benefits from centre-pivot irrigation, larger-scale machinery, improved seed quality, crop nutrition, disease management, washing and grading systems, and refrigerated transport. The state is particularly important in supplying washed and packed potatoes to eastern Australian markets, while processing varieties such as Atlantic and Russet Burbank have also played an important role in the state’s potato sector.

South Australia’s commercial potato industry developed after European settlement, initially concentrating in the South East and Mount Lofty Ranges, where higher rainfall supported potato production without extensive irrigation. By the early 20^th century, irrigation technology began expanding production into areas around Adelaide. Railways also became important for moving potatoes to markets; by the early 1900s, potatoes from the South East were being transported to interstate markets. Government involvement in the industry dates back to at least 1908, when a horticultural inspector was appointed at Mount Gambier, followed by potato variety and fertiliser trials and the introduction of new varieties from Britain in 1909.

Major transformation occurred after the 1950s, when improved irrigation, mechanization and urban expansion around Adelaide shifted potato production toward the Northern Adelaide Plains and subsequently toward the Murray Mallee and Riverland. Washing and consumer pre-packing developed strongly during the 1960s, while larger farms and modern irrigation systems enabled greater productivity and year-round supply. South Australia’s processing industry also expanded, including potato crisp manufacturing and the development of a French-fry plant at Penola in the 1980s. By the 1980s and 1990s, expansion in the Riverland and Murray Mallee had established a broad production corridor along eastern South Australia, helping the state become one of Australia’s leading fresh potato suppliers.