Peter Gibbs and horticultural experts Danny Clarke, James Wong and Pippa Greenwood head to the Riverhill Himalayan Gardens in Kent and answer questions from the GQT postbag. Led by Head Gardener Misako Kasahara, the GQT team explore Riverhill and learn the history of this once-abandoned site. They delight in the leafy ferns and woody rhododendrons found across the gardens. Feeling inspired, they dive into the postbag and suggest container plants for year round interest on a balcony, and propose the best course of action for a pair of poorly Acers. We also discover that Pippa has an especially sensitive sense of smell around one particular plant. Producer: Dominic Tyerman Assistant Producer: Bethany Hocken Executive Producers: Louisa Field and Ollie Wilson A Somethin' Else production for BBC Radio 4