2/3. From superlative show gardens to fantastic floral fantasies, Charlie Dimmock and Joe Swift root out what's hot and what's not at this year's RHS show. Revealing who has won the prizes, they'll also be taking a look at some of the latest gardening trends, while Wesley Kerr goes behind the scenes. Carol Klein reports on what's new in the Rose Pavilion, and design guru Wayne Hemmingway reveals what he grows in his own backyard. A Mondrian-inspired roof garden is opened up in all its artistic glory, and designer Tony Smith produces another of his famous outdoor classrooms - giving children the space to learn and perform drama in an inspiring environment. More tomorrow at 9pm.