We have always loved 'Kerstin'. It stands out most of the year with gray-green foliage, but then in the spring cream colored shoots turn pink for its first display. Then in August the mauve flowers cover the plant for its second. Mounding to 12 inches tall and 18 inches wide, it will fit into most all gardens. Be sure to put this one on your list to get...you won't be disappointed. Hardy to zone 5.