Bush rock walls look great but they are labour-intensive to build. We need to spend time finding the rocks that fit together to ensure a neat looking wall.
We use a mortar to set the rocks in place as we build the wall up and install drainage pipes behind the wall. We then backfill with gravel to aid drainage. While they look beautiful and age well, bush rock walls are generally not used in a structural situation.
These walls are great for low height situations where you have rock available.