Gardeners' Corner

Helen Mark presents this week's edition of Gardeners' corner. She takes a trip to the Arboretum at Castlewellan Forest Park to oversee the work on the herbaceous borders. Frank and Linda McCooke give Mary Doris a masterclass in all things gourd - from Crown Prince to Munchkins, how to grow and what to cook. David Lindsay from Picked Organic on why he decided to give the good life a go. Expert Ann Fitzsimmons joins Helen in studio to answer listeners questions. Email any time gardenerscorner@bbc.co.uk