Peter Gibbs and the team are at Latitude Festival in Suffolk. Pitching up their tents and propping up the cider van bar this week are Bunny Guinness, Bob Flowerdew, and James Wong. The panellists spend the programme roaming the grounds of the festival answering questions from the postbag as they go. They debate the best water to use in a hosepipe ban, what could be stunting the growth of a whole varied vegetable plot, and whether or not asparagus can be propagated. They also advise on how to cut back a large grass garden, offer planting suggestions for a highly-scented garden, and suggest ways in which gardeners can encourage nocturnal wildlife onto their plots. Elsewhere on the site, Matt Biggs holds court in the GQT travelling potting shed and Peter Gibbs catches up with Hektor Rous, the guardian of Henham Park, to find out what it's like to have 4000 people in your back garden. Produced by Dan Cocker Assistant Producer: Hester Cant A Somethin' Else production for BBC Radio 4.