Lucinda Mays, Chadron State College horticulturist, selected plants of historic settler culture for a plantbed to show what plants they brought with them to enjoy. Mays pairs Prairie Smoke with blue flowers for Spring. Thanks for your visit here. Please see her story and comment below if you wish. http://www.yankton.net/river_city/article_a3d2c4b6-fb1a-11e2-bfd0-0019bb2963f4.html