Do you know how to tell the difference between a cob nut and a wild nut? Fi explains how to know when the hazelnuts are ready to be picked, and how they were an essential source of protein for survival in the past.

Our guide for the Wild Harvests series, Fi Martynoga, is an expert forager and writer, living in the Scottish Borders. She has put together a most wonderful book called Scotland's Wild Harvests, and is a writer for Reforesting Scotland magazine, as well as being involved with Carrifran Wildwood (which I am invited to make a film about next year when they celebrate 20 years of success!).

A film for woodlandsTV by Jemma Cholawo, www.jemmacholawo.com