Eight years on, planners going through the application process for the new event discovered it triggered several clauses in the Reserve Board Act which require a longer period before the application can be approved.
"We were reluctant to postpone the event, [but] it's essential that we get it right," said Kate Hillier, director of the New Zealand Flowers and Garden Show.
One possible contributor to the show, Xanthe White, believes the delay doesn't have to be a bad thing.
"We're all gardeners so we're all pretty patient, and there's nothing wrong with waiting a little longer if it's going to be even better.
"Sometimes you have to wait seven years for a tree to flower."
At the time the Ellerslie Flower Show moved to Christchurch, it was drawing 65,000 visitors in Auckland. After the move the show was cancelled in 2014.
The New Zealand Flowers and Garden Show will now run from November 22, 2017, at Okahu Bay and Bastion Pt.