Annuals are experiencing a resurgence as today's gardeners demand a wider variety of options. No longer confined to monotone bedding plants, dozens of "unusual" annuals are now available at garden centers in colors and forms far removed from the classic annual bed of pink petunias or red geraniums. In the tradition of his classic "Herbaceous Perennial Plants, " Allan M. Armitage has compiled descriptions and assessments of 245 genera of true annuals...