Using native plants on a bank
Recently we completed a garden with a steep bank behind it, part of which was crumbling. We excavated back the overhanging part of the bank and used rock anchors and mesh to hold the newly cut back bank. You can use sprayed concrete over the mesh, but in this case the mesh was adequate.
To hold the bank at the base and provide a suitable garden we built up extended the raised garden and backfilled with garden mix. We then fixed ponga logs to the bank with pins and wires. The cut pongas are already sprouting in places at the top. The plants we used are mostly native climbers and low plants as below:
Metrosideros carminea, carmine rata
Tecomanthe speciosa, Three Kings climber
Pandorea pandorana, wongawonga ( not native)
Asplenium bulbiferum ( fern)