A new year of gardening with David Maxwell and his expert guests. David finds inspiration from visits to Jimi Blake’s garden in county Wicklow, advice on how to grow veg in a small space from Amy Kelly and he explores plants that are living at the edge of their comfort zone, including Tree ferns with Billy Alexander and grapes grown outdoors at a vineyard in Lusk. Contact the programme on gardenerscorner@bbc.co.uk