John Harris has been a professional gardener since he started his working life in 1966. He got his first spade when he was ten, his first allotment when he was eleven and his first job on a Cornish estate when he was fifteen. He was taught by'the best in the business', Noel Masters, a head gardener for many of Cornwall's leading gardens. After his apprenticeship, John worked through various horticultural jobs including running commercial garden centres and advising on large public-works projects until twenty-five years ago, when he was offered a challenge he couldn't refuse - the restoration of Tresillian Estate's famous Victorian kitchen garden that had fallen into deep neglect. He agreed, on condition that he could follow the ancient principles of moon gardening. Tresillian is now regarded as one of the UK's finest examples of a working estate kitchen garden. John shares his wisdom regularly on TV and radio, including appearances on BBC2's Gardening Stories, Gardener's World and BBC Radio Devon's Potting Shed. Numerous articles have been written by him and about him in the national press,including the Daily Telegraph, Vogue, Amateur Gardening and Country Life. He's also the author of Moon Gardening (2002), a work widely regarded as the world authority on the subject. At seventy-four, John still works full time as head of the gardening team at Tresillian, and lives on the estate with his wife Olive.