Rain Gardens

Rain gardens clean rainwater before it runs into our waterways. They look great and along with making a positive impact on the environment they can reduce garden flooding. Basically they catch the rainwater from a drain source such as guttering or paving and as the water filters through the various layers of the rain garden it is cleaned. The end result is clean water running back into our rivers and bay. See this great website on how to build your own.
http://raingardens.melbournewater.com.au/content/what_is_a_raingarden/how_do_i_build_a_raingarden.asp
or alternatively contact a landscaper to construct one for you. 
Ian Carmichael Landscapes is a Melbourne based company working towards using sustainable practices and constructing sustainable gardens. You can contact Ian regarding rain gardens at ianc7au@yahoo.com.au