The combination of silver evergreen foliage and the clear white pristine flowers of this perennial is exceptional. To 6″ and spreading May to June the foliage is obscurred by a daily supply of flowers. Very showy. Full sun and light but consistent summer water. Cut back hard when blooming has ended. This yields a more compact tidier plant. Good deer resistance. Banks, hillsides, parking medians. To 3′ wide.