Forms a neat upright clump to around 40cm high by 25cm wide. Narrow blue-green, strap like leaves. Great for adding structure to free draining beds in full sun. Good for pots too. Best taken into a cool greenhiouse for winter or plant out in a very sheltered spot and fleece if necessary. Being both heat and drought tolerant Coolvista is great for both sunny borders in well drained soil and pots.