Bastion Point will host Auckland's first international flower show next year, since the Ellerslie show was lost to Christchurch in 2008.
The New Zealand Flower and Garden Show will be held at the historic location which overlooks the Waitemata Harbour in November 2016.
Organiser Kate Hillier said she hoped the show would attract national and international exhibitors and visitors to Auckland.
"New Zealand has a very strong pedigree in garden design and this will give our top talent an opportunity to demonstrate their skill in an event of international standard," she said.
In 2007, Auckland City Council pulled back from making a $50,000 contribution to keep the Ellerslie Flower Show north of the Bombay Hills, and it shifted to Christchurch in 2009.