This colorful Spiderwort thrives in Phelps Grove Park in Springfield. We think it's Tradescantia pallida, common names Purple Heart, Purple Queen, and Pink Spiderwort. Long-jointed and sprawling, it grows 18 inches tall and likes full sun but will also bloom in shade. The deep-royal-purple foliage in time takes on a subtle dusty cast and the orchid pink flowers appear all season long. An outstanding groundcover, it can be grown indoors, too.