Leon Sloan was born and raised on a farm near Wynnewood, Oklahoma. In 1945 when Leon was six his dad put him on a tractor raking and bailing hay. Leon was hooked on farming. By age 20 Leon was into greenhouse gardening in southern Oklahoma and been growing plants and food in same location for the last 57 years. He has been building high tunnel hoop houses for other people for 40 years in Oklahoma and Texas. He continues to introduce innovative ideas to improve greenhouses.