Maggie's Farm most lovely flower, Marianne, sends us this photo taken April 1, 2012 near Ennis, Texas. The Texas Bluebonnet (Lupinus texensis) is the state flower of Texas. This part of the description is appropriate to Texas: "Bluebonnets cannot tolerate poorly drained, clay based soils." Roots cannot grow freely when constricted or drowned with limited ability to breath.