Gardeners' Corner attends Ireland's biggest gardening show, Bord Bia Bloom, as it celebrates its 20th anniversary. Presenter David Maxwell tours the show gardens and plant stands in search of takeaways for the ordinary gardener. Along with regular expert Anna Hudson, he meets Adam Frost and Neven Maguire, who are taking part in the show. Also on the programme are top plant picks from the show and highlights from the postcard gardens, which are created in one day by community groups from across Ireland.