What to do with steep banks
Mar
15
Written by:
Thursday, March 15, 2018
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:
Climbers:
Clematis paniculata, puawananga
Metrosideros carminea, carmine rata
Tecomanthe speciosa, Three Kings climber
Pandorea pandorana, wongawonga ( not native)
Low plants:
Coprosma kirkii
Arthropodium cirrhatum, renga lily
Asplenium bulbiferum ( fern)
Parahebe lyallii
And the completed job!
