How to use colour with TJ Maher, the story of Portnoo Market Garden and making leafmould

With autumn colour all around, David heads to an artist's garden in County Wicklow. TJ Maher has spent decades creating Patthana with his partner Simon. With an artist's eye, TJ paints with plants and particularly loves the rich, warm colours of autumn. As they explore the garden, David gets a masterclass in combining colours and discovers how they can influence the way we feel. Also on the programme, Barrie Quinn tells the story of Portnoo Market Garden, while Rosie Maye joins David in the studio to answer listeners' questions and explain why now is the perfect time to make leafmould and compost. Contact the programme on gardenerscorner@bbc.co.uk