Seeds from Clematis integrifolia Mongolian Bells. This unique Clematis is so compact that it is recommended as an edging plant with larger perennials or shrubs. It can even be used as a groundcover. Mongolian Bells blooms off and on all summer in pink, white, lavender, or blue. They will grow about a foot or so high and wide and will tolerate dryish soils in full sun or light shade. Zones 3 to 9.