About

Sharpham Park is a regenerative organic farm in Somerset, producing British organic walnuts in rhythm with the land.

Rooted in soil health, seasonality and a zero-waste approach, the farm is led by Roger Saul and shaped by a long-term view of British agriculture.

Watch the view below to learn more.

The walnut farm today

Sharpham Park is led by Roger Saul, founder of Mulberry, who turned his focus from global fashion to farming with a long-term view. The estate produces British organic walnuts through a regenerative system designed to support soil health, biodiversity and resilience.

At its core is a simple approach, to work with the land rather than against it, and to build a model of farming that supports both the environment and the future of UK food production.

Meet Roger

Roger Saul is a British entrepreneur and regenerative farmer, best known as the founder of Mulberry. At Sharpham Park in Somerset, he has spent over two decades developing an organic, mixed farming system focused on soil health, biodiversity and sustainability. A pioneer of spelt in the UK and now a leading grower of organic walnuts, Roger advocates for resilient, low-input farming and sustainable UK food security.

Buy Roger Saul's Spelt Recipe Book

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From spelt to walnuts

Walnuts sit at the centre of the farm today, but they are part of a longer story. For many years, Sharpham Park was known for growing and producing organic spelt, helping to reintroduce this ancient grain to a modern market.

Despite strong demand, the realities of scaling British organic grain production without consistent supermarket support made it increasingly difficult to sustain. The decision to step back reflects a wider challenge within UK farming, where smaller-scale, regenerative systems often struggle without long-term backing.

Nothing is wasted. Each stage of the harvest feeds the next.

Sustainability

Working with the seasons

The year follows the rhythm of the walnut tree. In early summer, green walnuts are harvested while still young, a practice rooted in centuries of food tradition. By late October, the main crop is ready, marking the British walnut harvest.

Alongside the nuts themselves, the leaves are also gathered, reflecting a deeper and often overlooked part of the tree’s history. Each stage of the season plays a role, shaping how the farm works and what it produces.

History

The journey began when Roger Saul stumbled upon a hidden treasure – the remains of a Monk's lunch, tucked away in a 16th-century wall.

Intrigued by the discovery of chicken bones, walnuts and scallop shells in the ancient manor house of the Abbot of Glastonbury, Roger decided to plant 300 organic walnut trees as part of his careful restoration of the farm.

Little did he know that it would take nearly two decades for these walnut trees to mature to productivity!

Our process

When the walnuts are ripe, we dust off the machinery, rev up the tractor for a shake-down and catch the walnuts in a massive tarpaulin.

Then the walnuts are rattled around at super high speed in the skin stripper, cleaning off any green husks, before being loaded into a giant nut dryer to be rolled slowly and gently dry.

Finally, we hand-pack the organic walnuts into recyclable boxes, ready to be whisked away within weeks of their harvest.

The walnut tree

At the centre of Sharpham Park is the walnut tree. From green walnuts in early summer to the autumn harvest, and even the shells and leaves, each part of the tree has a role to play.

Nothing is wasted. Branches are chipped and returned to the soil as mulch, husks are composted and reused as natural fertiliser, and shells are collected for new product uses. This circular approach allows the farm to work with the land rather than rely on external inputs, supporting soil health, biodiversity and long-term resilience.

It is a practical, working example of regenerative farming in action.

Learn more about our approach to sustainability.

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Blog articles

  • Walnuts, recognised as a Top 50 Sustainable Future Food by the Knorr & WWF report

    Possibly the oldest tree food known to humans, records report walnut consumption dating back 10,000 years49. Containing more omega 3 fatty acids and vitamin E than many other nuts, the kernel itself resembles the two halves of a brain, reinforcing their nickname of ‘brain food’. Walnuts contain protein, vitamins and minerals, and have been claimed to be one of the most nutritious nuts.

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  • Sustainable, regenerative British Organic Walnut farming without chemicals

    Rest assured, our commitment to organic and regenerative farming means our products are free from pesticides, insecticides, and oil-based fertilisers. Experience the pure goodness of our organic walnuts, nourished by our thriving soil microbiome, promoting both digestion and gut health.

    Learn More 
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