The panel of Chris Beardshaw, Pippa Greenwood and Matthew Wilson join gardeners in Amber Valley, Derbyshire. In defence of Ivy: Matthew Biggs argues the case for this much-maligned plant. Also in the programme, Pippa Greenwood goes behind the scenes at an NGS garden in Ashbourne. The presenter is Eric Robson. Producer: Lucy Dichmont A Somethin' Else production for BBC Radio 4.