The A- Z Of Chelsea will broadcast on Sunday 13 May, a week before the event coverage begins.

Almost 15 hours of Chelsea coverage will be transmitted across BBC One and Two

Mary Berry, Nick Knowles, Chris Bavin and Jo Whiley will also present coverage alongside established Flower Show presenters in what will be a bumper year for RHS Chelsea programming on the BBC.

Jennifer Saunders says: “It’s been my life’s ambition to spend my time talking to Adam Frost about bedding.”

David Brindley BBC Head of Popular Factual Commissioning, says: “We’re thrilled to be welcoming the utterly brilliant Jennifer Saunders in to our BBC gardening family for the Chelsea Flower Show. This year promises to be a bumper one across BBC One and BBC Two with some of our biggest names - including of course Monty Don and the Gardeners’ World team - coming to join the festivities.”

Paolo Proto, Executive Producer of the BBC’s Chelsea Flower Show coverage for BBC Studios says: “Chelsea is always the most eagerly anticipated event of the gardening calendar, and to have Jennifer Saunders present a preview to the most prestigious flower show in the world makes it even more exciting, as a keen gardener herself you can guarantee she’ll do it with a touch of playfulness that viewers will love.”