Weeds were removed and replaced by 50 native plants between the bridge and the garden on the banks of the lower Bullock Creek.
Queenstown Lakes District Council parks and reserves officer Diana Manson said it was the first of several activities planned for Parks Week 2018, from March 10-18.
Councils on both sides of the Tasman were participating in the combined New Zealand Recreation Association and Parks and Leisure Australia initiative to raise awareness of the value of parks and open spaces, and to get people out of their living rooms and enjoying the outdoors.
Ms Manson said there were ``untold benefits'' from visiting parks and reserves, from improving physical and
mental wellbeing to building stronger and connected communities by providing places where people came together for leisure and social activities.
``It's really important from a parks and reserves point of view to keep these areas maintained and improved as much as we can.
``Doing it in partnership with Te Kakano (a non-profit trust with a community-based native plant nursery that specialises in propagating plants of local origin in support of native habitat restoration) is a great community liaison project,'' she said.
Te Kakano spokesperson Megan Williams said they asked the district council to be involved in the project as the lower Bullock Creek area had a high amenity value as it was next to the Dinosaur playground.
She said planting flax, kowhai and carex secta tussock along the banks would not only stabilise the banks but provide habitat for insects and shade for fish.
``It's a win-win for the community and the environment,'' she said.
