In this week's books podcast, Sam's guest is Kate Teltscher, who tells the fascinating story of one of the greatest showpieces of Victorian Britain: the Palm House in Kew Gardens. Though the gardens and their glassy centrepiece are now a fixture of London's tourist map, as her new book Palace of Palms reveals, they very nearly weren't. She tells Sam how a team of brilliant mavericks used cutting-edge science and engineering to build one of the greatest constructions of its era... in just the wrong place. With walk-on parts for Darwin, Humboldt and Alfred Russel Wallace, she reveals the way in which Victorian botany extended its tendrils through the whole Empire, shows how the palm was seen as the "prince of plants", and describes the quest for the palm of all palms, the elusive coco-de-mer.