MARTIN CRAWFORD

think few people know at 18 what they want to do in life,” muses Martin Crawford. He had chosen to study maths and computer science at university, and saw himself entering the fast-moving world of IT. His thirst for innovation, however, was to take a radically different direction. Always an outdoor person, he began to take an interest in horticulture and to volunteer at small, organic farms at weekends. By the time he graduated, he was fairly sure he wanted to spend his life among plants. A year