This is a colourful selection of a native North American wildflower, forming an upright mound of rich burgundy-purple leaves, studded with starry yellow flowers in the summer. Will spread to form a sizeable patch, sometimes too vigorous for the border but terrific in containers or among shrubs. Valuable as a contrast plant in the border, especially nice combined with orange or red-flowered neighbours, or with silvery Artemisia. Also terrific with late-flowering tulips, acting as a good mask for the dying bulb leaves. Tolerates wet soil. Excellent for cutting. The best foliage colour is early in the season, the leaves becoming more or less green by mid to late summer.