Kathy Clugston and the panel are in London. Fielding your horticultural queries this week are Anne Swithinbank, Pippa Greenwood and James Wong. This week, the team get suitably scientific as they answer questions from a live audience at Wellcome Collection, London, a museum exploring health and the human experience. The panel share their knowledge on vernalisation, chimeral variegation, and the process that makes watermelons from Bulgaria taste so sweet. They'll also be offering up some adventurous recommendations for climbers to grow in total shade and planting on a narrowboat. Away from the questions, curator Emily Sargent shows regular panellist James Wong around the Rooted Beings exhibition at Wellcome Collection, an exhibition which asks us to reconsider our relationship to the plants we take for granted in our everyday life. Producer: Dominic Tyerman Assistant Producer: Bethany Hocken A Somethin' Else production for BBC Radio 4