Rachel De Thame and Joe Swift lead the team for the last instalment from this year's RHS Hampton Court Palace Garden Festival. This show-stopper is packed with the brightest and best summer blooms, the latest designs, and take-home tips and tricks for every gardener.Arit Anderson discovers the secret of the perfect cut-flower garden. Mark Lane embarks on a voyage around the world among the diverse plants in the marquee. Carol Klein will be time-travelling with a trip down memory lane to see how planting can trigger memories of yesteryear, as well as revealing the latest plant to bring back into our gardens, the fuchsia. Grenfell gardener Tayshan Hayden-Smith will be checking out the festival's community allotments, and Toby Buckland completes his three-part guide to creating the perfect outdoor living space in your garden.