Northern Research and Demonstration Farm
Themes for the 2010 Home Demonstration Garden Field Days were several newer cultivars of annual flowers (zinnia, four o’clocks, gazania, gaillardia, petunia, coleus, and vinca), a blooming quilt block, eggplant cultivars (including an inedible eggplant), and a compost trial.
Iowa State University
Haynes, Cynthia L., "2010 Home Demonstration Gardens" (2011). Iowa State Research Farm Progress Reports. 254.