This week's programme is dedicated to perhaps the quintessential foliage plant, the fern. Firstly, garden designer Danny Clarke shares his love of the majestic tree fern, Dicksonia antarctica. Then we head into the dark and mysterious Stumpery at RHS Garden Rosemoor to meet a magnificent cast of ferns luxuriating in the cool, moist conditions there.

Author and journalist Richard Mabey explores a fern frenzy that swept Victorian Britain, the catchily-named Pteridomania. And finally, RHS horticultural advisor Jenny Bowden offers hints and tips on how to get the best out of ferns in your garden.