Gardeners' Question Time: Morden Hall Park: Postbag

Peter Gibbs and the panel are at Morden Hall Park London, where Christine Walkden, Matt Biggs and Juliet Sargeant answer horticultural questions. Plus, horticulturalist at Morden Hall Park, Jade Wall, takes the team on a tour round the park's Edwardian rose garden, willow wood, and the wetland fed by the River Wandle