We take you behind the scenes during the exiting build-up to the world’s most famous flower show. We hear from garden designers including Cleve West, Adam Frost and Matt Keightley about the inspirations behind their RHS Chelsea Flower Show gardens.

Alan Titchmarsh celebrates 50 years of the RHS Britain in Bloom campaign and we also hear from the RHS apprentices who have been given the once-in-a-lifetime opportunity to work on some of Chelsea's high profile gardens.