The greatest flower show on earth is back in its traditional time and place at the Royal Hospital in Chelsea, in spring. And what a show! Join us as we meet the designers of the Gold medal-winning 'A Rewilding Britain Landscape' garden to explore their portrayal of how the return of a long-lost species, the beaver, can transform landscapes and ecology. BBC Gardeners' World presenter Joe Swift gives a tour of his bee-friendly garden and we meet 'Cloud Gardener' Jason Williams and fellow balcony gardener Bea Tann.

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