Internationally renowned, award-winning garden designer Dan Pearson talks to Chris about his exciting project to breathe new life into the gardens of a ruined castle high in the Cumbrian hills. Garden writer Melissa Mabbitt shares the down-to-earth secrets of making great compost, following a recent visit to RHS Garden Harlow Carr to meet 'Queen of Compost', Alison Mundie. Finally, food writer Mark Diacono discusses the last in his 'Tastes to celebrate' series: cooking apples – sharing favourite varieties, great ways to use and store them and giving some cultivation advice too.