1.2m-1.4m A lovely, easy plant which hasn't needed support at all for me. It produces a clump of attractive, divided foliage, and stems bear fluffy white catkin-like flowers in summer, which still look attractive as they produce seed heads. Prefers sun to part shade, with a well-drained but not too dry, fertile soil.
15-25cm. A well-behaved plant, producing masses of mid-pink flowers from late spring and through the summer. Well-drained soil in full or part sun. A really valuable plant for the rock garden or front of border.
10cm. Shining, golden crocus-like flowers from September to November, with dark glossy leaves appearing soon after flowers, and lasting until late spring. These bulbs need a deep, well-drained soil in a sunny position.