cortensteel edge around the triangle add the following plants one miscanthus sinensis yakushima dwarf to the left and of the cortensteel and one to the right of the cortensteel a row of festuca glauca elijah blue along the rightern edge 5 heuchera obsidian in a group in front of the cortensteel ajuga reptans black scallop in the gaps 5 persicaria amplexicaulis blackfield in a circle below the tree
