Echinacea purpurea 'Green Twister' (Coneflower)
This coneflower blooms in various hues—sometimes the green is more pronounced, sometimes it's a soft yellowish hue. Sometimes the halo is very wide and prominent, sometimes it's just a subtle ring of pink right around the central cone. As each bloom matures, the reddish color darkens to more of a rich carmine. All of this variation looks outstanding, both in the border and in cut-flower arrangements.