Inside Britain’s biggest legal cannabis farm and why business is booming for CBD producers

The luscious green plants stretch as far as the eye can see. Row after row, lovingly tended in a glasshouse that’s roughly the same size as 34 football pitches.

Thought to be one of the UK’s largest glasshouses, the 45-acre glasshouse in Wissington, Norfolk, sits in an area known for the growing of crops, vegetables and fruit, from peas and beans to tomatoes and strawberries.

But this crop is slightly different. Once filled with tomato plants, the glasshouse owned by British Sugar is now home to hundreds of thousands of cannabis plants grown for the pharmaceutical company GW Pharmaceutical.