"We're very happy with the display. In terms of numbers it's met our expectations," Walshe said.
"It's the first time we have held something like this and you never know how it's going to go. But you've got to try these things."
There is a public vote for the two most popular trees, with the winners receiving hampers donated by Cr Erana Peeti-Webber.
Trees have been created from different groups within the community including businesses, schools, organisations and individuals, including mayor Tracey Collis.
The Christmas tree extravaganza will run through until Christmas eve.
Opening hours are 10am until 2pm. It will also open by arrangement outside these hours for large groups.