Quex Estate farms 1,400 acres in-house and manages a further 1,200 acres through agreements. Main crops include wheat, oilseed rape, potatoes, oats, fava beans and maize silage. A single herd of Sussex cross cattle grazes the marshland.
The Estate is a member of the Nature Friendly Farming Network and uses practices such as sowing cover crops. Around 25 years ago, the Estate stepped away from vegetable production, but vegetable growing is now returning.