The best of the NEW! Host Jamie Durie takes viewers to Cornerstone Gardens one of North America's premier collections of exciting new garden design. Cornerstone presents gardeners with terrific, fresh ideas to bring home to their own spaces. Ever wonder how new plants make it onto nursery shelves? Gardening correspondent Paul Epsom explores the path from seed to retail sale when he visits an All-American Selection trial garden. This week's "Homegrown" segment features a husband and wife team that bring the farm to the table: Farmer Chris Kurth and chef Ana Sortun show resident chef Michel Nischan the glories of freshly-dug potatoes.