Waterwise Border
This set of terraced stacked basalt retaining walls helps to stabilize this steep hillside. The layered plantings are both water-wise + low maintenance + pollinator friendly. Plants include Festuca glauca 'Elijah Blue' (Blue Idaho Fescue), Sesleria autumnalis (Autumn Moor Grass), Lavandula angustifolia (English Lavender) and Salvia nemorosa (Sage).