Nierembergia - Purple Robe
The Nierembergia Purple Robe, 'Nierembergia scoparia', is the perfect plant if you want a long-blooming, easy-care perennial to edge the front of a bed or border. It flowers all summer, and there's no need to deadhead. Hardy in climate zones 8–24, the 'Purple Robe' grows just 6 to 12 inches tall and wide. It is not invasive, has no significant pest problems, and usually gets by with a weekly watering. ... additional info
Cuphea - Allyson The Cuphea Allyson, 'Cuphea rosea', is a plant that is used in containers that has purple flowers and green foilage. Summers heat will not stop these unique flowers. Pinching in early summer will promote branching. This plant can also be a perennial in warmer zones.
