'Purple Heart' setcreasea is one of those plants that is more highly valued for its foliage than the flowers. Intensely purple, lance-shaped leaves grow along thick purple stems, mounding six to twelve inches tall and spreading up to 18 inches wide. We use it frequently in our summer shade baskets, but 'Purple Heart' can handle all but the hottest sun without losing its good looks. If grown in too deep a shade, it may turn a dark green.