|Vigorous perennial grown for its attractive, silver-grey foliage with narrow green edging. This shade-loving trailer is at home in the hanging basket or as a ground cover. The light colored foliage makes the most of what light there is in shady spaces, especially under trees, where little else will grow. Spiked, whorled, white flowers late spring to summer. Flowers attract bees. Evergreen in milder climates, deciduous in colder areas. Requires occasional trimming to keep neat and tidy. Popular cultivars include: 'Chequers'