Monty Don and Joe Swift are joined by Carol Klein, Rachel de Thame, Adam Frost, James Wong and Toby Buckland at the Royal Horticultural Society's Hampton Court Palace Flower Show. Monty tours the new Capability Brown garden category and Joe takes a look around this year's conceptual gardens. Carol demonstrates how to create the perfect cottage garden, Adam takes a look at newly launched plants and flowers and Rachel meets a garden designer who has created a perfume garden.