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Garden retaining walls & adequate drainage

September 19, 2012 in Blog


Our home is on a significant slope, so much of our garden needs to be made via tiered sections (with retaining walls). I was wondering if anyone had suggestions on how to ensure adequate drainage so the retaining walls don’t get pushed over by pressure build up over time?

In the back garden I will have a couple of retaining walls for veggie gardens and then another more significant retaining wall in order to level out the grass area to make it more appropriate for ball sports for the kids!

All advice/ suggestions would be gratefully received!

5 comments to 'Garden retaining walls & adequate drainage'

  1. @Taryn We had a landscaper come and do some landscaping for us including the building of a retaining wall. He used large roundish rocks from a landscaping place south of Canberra. They are just beautiful, and extremely solid. Any excess water will flow over the top or out the cracks at the sides of the rocks. There is no way that they will ever move!

  2. @Taryn If you use more solid products such as bricks, you can leave gaps and insert agricultural pipe for excess water to drain through.

  3. @Taryn I forgot to ask, have you thought about installing swales or doing keyline ripping instead? Great way of increasing water absorption and would certainly be cheaper.

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