大象传媒

Charlotte Smith visits the UK's largest collection of culinary herbs to learn about this fast-growing industry. Jekka McVicar started cultivating herbs when her mother taught her how to make fresh mint sauce. Now she grows more than 300 varieties at her farm just outside Bristol.

Nancy Nicolson is at Scotland's largest herb grower, which is making the most of the northerly weather conditions to grow more than two tonnes of herbs every day. They're also cooperating with local farmers to plant herbs as rotational crops.

We also meet the farmer reviving saffron as a crop. It's known as the 'gold' spice because it's literally worth its weight in gold. The industry died out here two hundred years ago because of cheaper imports.

The producer in Bristol is Sally Challoner.