Joe Swift and Jo Whiley take a first look at just some of the 24 gardens and over 100 floral exhibits at the world’s largest annual flower show – the RHS Hampton Court Palace Garden Festival 2019. In the first of four programmes this week, Joe and Jo are joined by experts Carol Klein, Adam Frost, Arit Anderson and Rachel de Thame as they meet some of the new garden designers at Hampton this year, and explore the glorious show gardens and the dazzling displays in the floral marquee.