Australian Arid Lands Botanic Garden, Botanical garden in Port Augusta, South Australia.

The Australian Arid Lands Botanic Garden covers 250 hectares on the Stuart Highway in Port Augusta West, 1.4 km north of the Eyre Highway. Near the visitor centre are intensive planting zones such as the Eremophila Garden, with about 155 varieties, and collections representing the Flinders, Gawler, Eyre and Central Ranges and the Great Victoria Desert. Mangroves and samphire grow along Spencer Gulf on the eastern boundary, reached by a boardwalk.

John Zwar, Port Augusta's first Parks & Gardens Superintendent, proposed the garden in 1981. Kinhill Steams drew up the first master plan in 1986, and the landscape architect Grant Henderson designed the garden as built. The Friends group formed in 1984 to lobby and raise funds, and the garden opened in September 1996.

The garden displays native Australian plants adapted to heat and drought, including many species that naturally grow in this region. These collections help visitors understand how plants survive in dry climates.

The site is accessible daily and can be explored on walking trails, with some areas wheelchair-accessible. Plan for enough time to cross the large site and see different sections.

The garden's 250 hectares are mostly left untended after planting, with only weed and pest control; the Eremophila collection near the visitor centre holds about 155 varieties, one of the largest of its kind, and the Friends sell plants at the biennial Eremophila Festival.