This month we unfurl the best wintergreen ferns with Wisley Curator Matt Pottage. From flamboyant and exotic woodwardias to the delightful, diminuitive native polypody, there's a fern to add greenery to any garden throughout the darkest months. Plus, Jon Webster shares the delights of the Foliage Garden at Rosemoor; and if you thought pathology was confined to glossy TV dramas, think again, as Plant Pathologist Jassy Drakulic shares insight into her role at the forefront of keeping our beloved specimens safe from all manner of garden baddies. For more info and useful links see www.rhs.org.uk/thegardenpodcast