Joe Swift and Jo Whiley are hunting out ideas for your gardens at the RHS Flower Show Tatton Park. In the first of two programmes, Joe and Jo are joined by experts Carol Klein, Adam Frost, Frances Tophill, Nick Bailey, Arit Anderson and Mark Lane. They meet some of this year’s finalists for the RHS Young Designer competition, take a first look at some of the iconic Back to Back gardens and celebrate the stunning high-summer colour plants in the floral marquee.