New additions for 2015 include Peonies, Crapemyrtles, and Forsythia. See below for slideshows featuring some of them. Cultivars on the Prairie Bloom list have been tested for 3 or more years in the K-State trials and have received very high ratings in vigor and floriferousness (and, since this is a perennial trial - survival!).
The height and width dimensions in the publication were observed during the trial period at the K-State Horticulture Research & Extension Center in Olathe. The actual plant size in your garden may differ slightly depending on where you live and the level of care you provide. Crepemyrtles, for instance, typically die back to the ground after winters in northeastern Kansas, but they grow to be tree-sized in southcentral Kansas. A local garden center should know how things perform in your region, or consult with your county extension office.