Gardeners' World celebrates its 50th anniversary with a full hour of gardening from Gardeners' World Live at the NEC. Monty kicks off the party and is joined by the whole team, who will be bringing you all the show has to offer. Joe Swift and Adam Frost take a look at the show gardens and we meet garden designer David Stevens, who has created a garden showcasing 50 years of changing trends in our back yards. Carol Klein is in the floral marquee looking at the plants which have defined the decad