Summer can't be far off, because the Royal Horticultural Society's Chelsea Flower Show is here. With less than 24 hours before the showground officially opens, Sophie Raworth and Joe Swift take an exclusive look at the showstopping gardens and Great Pavilion exhibits, meeting designers and growers and revealing just how this huge event is put together.

They're joined by Monty Don, who shares his first thoughts on the week ahead, alongside Carol Klein, who previews this year's headline acts in the Great Pavilion. Nicki Chapman and James Wong reveal what we can expect in our daytime coverage, and award-winning actors Imelda Staunton and Jim Carter take a tour of the showground before it opens to the world. Show less