Cobnuts are cultivated hazelnuts and they've been grown in Britain for centuries.

Just before the outbreak of World War 1 the national acreage of cobnut orchard was over 7,000 acres; today it's under 300 acres.

The rise in labour costs, availability of imported goods, the demand for houses, gardens and paddocks, and latterly the demise of the greengrocer have all taken their their toll.

Allens Farm, near Sevenoaks, is one of the largest cobnut farms in Kent with 2,500 trees.

The orchard has passed through five generations of women. It's now managed by Jill Webb, together with her daughter Samantha and her three brothers.

They all work on the farm, but in a converted barn where they also run a computer software business!

As well as cobnuts they have southdown lambs, which graze under the trees to control bramble and overgrowth.

They also have cherry orchards, plums, damsons, a llama to protect the sheep from foxes, and three Kuni Kuni pigs which love scouring under the trees for nuts.

The cobnut harvest runs from late August ( when the nuts are green) to October (when they are brown and ripe).

Harvesting is done by 2-3 pickers who come for the harvest to escape the stress of London life.