Water in the garden can be a blessing and a curse. While it’s great for plants, when it gets under houses it’s not so helpful. When we took on this job on a sloped property in Geelong one of the first issues identified was the water coming down the hill and under the house. One option would have been to put in a perforated agricultural drain pipe (agi-pipe) and divert the water into the storm water network. With the clients blessing we chose to make a feature rain garden in front garden. Rain gardens help treat and slow the flow of water before it gets into storm water systems and local water ways. Installing a rain garden also enabled the water to be accessible to the new tree planting in the front garden.
The site before we started work
We called in the big equipment to dig out the base of the rain garden
The trenches for the pipe were filled in with scoria
This image shows the agi-pipes at work. The water makes it’s way down the hill and into the trench before being redirected into the rain garden at the front of the property.
The agi-pipe is flexible enough to curve around the front of the house
The drainage trench meets up with the main rain garden
The base of the rain garden is filled with a deep layer of large scoria stones which water filters through easily
A layer of half sand half loam is then added as a growing medium for planting
You can use many types of mulch for a rain garden, in this case we were going for a stylised dry river bed and chose washed river stones.
The rain garden was then planted out with native grasses that are tolerant of both drought and inundation.
If you want any more information of rain gardens or other ways to use water better in the garden contact us here or via the form below.