 This is also the largest free home and garden show in green country. And KMG's own Alan Storjohan will be broadcasting the gardening show live on Saturday from nine to noon. The hours on that, Friday, noon to seven, Saturday, 10 to seven, and Sunday, 11 a.m. to 4 p.m. Once again, that's the 16th annual Home and Garden Expo of Oklahoma at the Exchange Center.