"It is a community Christmas tree that will reflect the breadth of the community," she said.
"One of our missions at the Incubator is to connect people through creative arts. It is a great way to create well-being."
Six trees will be erected on the Tauranga Waterfront and another six trees at Red Square. "Hopefully they will be up in time for the Santa Parade on December 2," Anderson said.
Anderson said the baubles, paint and paintbrushes were delivered to each community group who were each allocated a different theme.
She said nurses, doctors, patients and parents arrived at Tauranga Hospital's children ward to help paint during the day.
"It does not surprise me because I know how people want to be engaged with art, but when you create an opportunity, people start to swarm around it."
Hospital patient Hailey Trappitt, 16, painted her baubles with different planets and a galaxy.
"It is quite cool to play a little part in something that is hopefully going to look really amazing and be very Christmassy."