Our marsh samphire comes from Great Orcheton Farm in South Devon. It grows in low-lying fields along the edge of the Erme estuary, which were flooded when a 200 year-old sea wall broke four years ago. This created a rich wildlife habitat whose tidal nature also gave just the right conditions for samphire to grow in. storage Keep well-wrapped in plastic in the fridge. Eat as soon as possible & certainly within a few days; samphire does not keep for very long. cooking instructions Samphire needs only very light cooking, & no salt! To prepare, trim any woody ends from the base of each frond & wash thoroughly in cold water to remove any sand or grit. Boil in unsalted water for a few minutes this moderates the saltiness to just about the right level for eating. Alternatively steam for a few minutes over boiling water, & serve with unsalted butter, or dress with lemon juice, freshly ground black pepper & good olive oil.