Unlike most catmints this is remarkable for providing a striking vertical, placed among lower plants. Stiff squared stems carry upright branching flowerheads densely packed with tiers of mauve-tinted buds among which sparkle tiny blue-lipped flowers. Leaves, stems and buds are densely clothed in white wool, giving a pale silvery-grey effect. Colourful for weeks in midsummer, still providing good outline when drought drains colour. Has thick swollen roots like a dahlia, another adaptation to drought. Needs well drained soil in sun.