Kathy Clugston hosts this week's gardening Q&A with a panel of experts. Pippa Greenwood, Bunny Guinness and Chris Beardshaw join Kathy to answer the questions sent in by green-fingered listeners. This week our panellists explain what a Hugelkultur bed is, and what you can grow in it. They share their garden memories and suggest some planting ideas for one listener's unique outdoor sculpture. We also join Dr Chris Thorogood as he learns about the history of botanical photography from exhibition curator, Alex Moore. Meanwhile, in the dead of night, Pippa Greenwood is delighted by those beautiful, fascinating creatures - glow worms. Producer - Jemima Rathbone Assistant Producer - Millie Chu A Somethin' Else production for BBC Radio 4