How can trees be integrated into all types of farming? The UK's first agroforestry show is trying to find out.

We hear from a Norfolk farmer working hard to keep his 72,000 free range pigs cool.

As part of our week looking at UK grown herbs, today we focus on native herbs like sweet woodruff, musk mallow and rock samphire.

Presented by Anna Hill and produced by Beatrice Fenton.