Monty Don and Joe Swift are joined by Carol Klein, Rachel De Thame, Adam Frost, Toby Buckland and Nick Bailey at the Hampton Court Palace Flower Show. Monty tours the new RHS Kitchen Garden and Joe takes a look around a garden designed for blind veterans. Carol explores the Rose Marquee to uncover the new varieties on display. Adam continues his series looking at how to best use plants when designing your dream garden, whilst Nick reveals the science behind scent.