Frances Tophill and the team continue to celebrate the joy that the gardening year brings throughout the seasons. Rachel de Thame visits Anglesey Abbey in Cambridgeshire, a garden designed to look its best in winter. On a trip to the Knepp Estate in West Sussex, Arit Anderson hears how the principles of rewilding can increase biodiversity in our own gardens, and Nick Bailey meets a man whose potting bench is more like a laboratory bench where he grows hardy orchids from seed. There's a gardener in Worcestershire who has amassed an astonishing collection of cacti and succulents, and a couple of friends in London share their passion for growing cut flowers. There’s also a chance to see what viewers have been getting up to in their gardens.