Joe Swift and Rachel de Thame present a preview of the Hampton Court Palace Flower Show run by the Royal Horticultural Society. The show celebrates 500 years since Henry VIII's accession to the throne with gardens designed for each of his wives. A special feature, The Conceptual Gardens, sparks controversy between plant purists and art lovers, and all the beauty of the season's top blooms is displayed to its best advantage in the show's largest ever Floral Marquee.