Echinacea and Goldenseal-A Dynamic Duo! Echinacea (Echinacea purpurea / angustifolia) also known as purple coneflower, is a perennial herb that is native to the central to southeastern areas of the United States. While it only grows wild in the US, it is also widely cultivated in Europe. Echinacea grows up to twenty inches in height, producing large, beautiful, daisy-like purple flowers, although some varieties sport white flowers.