Eric Robson and his panel are in Stoke-on-Trent. Bunny Guinness, Bob Flowerdew and Chris Beardshaw answer the audience's questions. This week, the panellists discuss veg growing in frost pockets, growing lavender from seed, and planting onions to ensure a good crop. They also suggest low-growing evergreen shrubs, advise on making Willow arches, and nominate plants for a hot, dry indoor space. Away from the questions, Matt Biggs visits RHS Lindley Library to find out about their upcoming Centre for Horticultural Science and Learning. Produced by Hannah Newton Assistant Producer: Laurence Bassett A Somethin' Else production for BBC Radio 4