cortensteel edge around the triangle add the following plants three miscanthus sinensis yakushima dwarf just left of the middle just right of the middle a strip of multiple persicaria amplexicaulis blackfield festuca glauca elijah blue in a row along the complete rightern edge and some on the left heuchera obsidian in front of the miscanthus and on the left and ajuga reptans black scallop to fill the gaps and along the other edges
