Joe Swift, Jo Whiley and team tour the RHS Hampton Court Palace Garden Festival 2019, in a programme packed with design ideas and top tips from some of the best growers and nurseries in the land. Experts Carol Klein, Toby Buckland, Adam Frost and Arit Anderson are here to inspire us to get outdoors and enjoy our gardens. Chris Packham talks about the BBC Springwatch Wildlife Garden at Hampton, and explains why our garden spaces are key to helping British wildlife.