Horticultural programme featuring a group of gardening experts. Peter Gibbs presents the second instalment of highlights from the Potting Shed sessions at this year's Chelsea Flower Show. Answering the questions this week are Ashley Edwards, Pippa Greenwood, Bob Flowerdew and Chris Beardshaw. From GQT's bustling Chelsea exhibit, the panellists share their advice on planting for window boxes, growing the most delicious blueberries, and cultivating dahlias that stand the test of time. Away from the questions, Matthew Wilson chats to PhD student Jack Greenhalgh about how the interdisciplinary science of eco acoustics could aid efforts towards restoring biodiversity in freshwater environments. Producer: Dominic Tyerman Assistant Producer: Bethany Hocken A Somethin' Else production for BBC Radio 4