Plant A Tree for Wild Koala Day Posted by Brian Laul | Apr 6, 2019 | Environment, Episode 64, Events | 0 | Plant A Tree for Wild Koala Day On Sat 4th May, Campbelltown Council once again invites the community to join in tree planting for Wild Koala Day at Cook Park, Ruse. The effort is supported this year by Greening Australia and the WWF Australia.