How do I get my cypress tree to be pencil thin? I grow vegetables in pots – how can I stop cats ‘going’ in them? Have I killed my husband’s beloved banana trees? When should I cut back my salvias to get a good display in the spring and summer? Returning to Tring to answer these questions and more in front of a live audience are Peter Gibbs and this week’s panel: Pippa Greenwood, expert in pests and diseases, plantsman Matt Biggs, and garden designer Juliet Sargeant. And Dr Chris Thorogood, GQT’s intrepid plant-hunter, went to Sumatra to hunt down the Titan Arum – Amorphophallus titanum – in its natural habitat. Producer: Daniel Cocker Assistant Producer: Rahnee Prescod Executive Producer: Louisa Field A Somethin' Else production for BBC Radio 4