Martin Crawford has worked in organic agriculture and horticulture for more than 25 years. His experiences span from working for the Yarner Trust in North Devon, teaching small-scale organic agriculture to restoring the walled gardens of a manor house to running an organic market garden and tree nursery in South Devon. Martin is director of the Agroforestry Research Trust, a charity that researches temperate agroforestry and all aspects of plant cropping and uses, with a focus on tree, shrub and perennial crops. He runs a commercial tree nursery specialising in unusual trees and shrubs, and has an 8-acre trial site, researching fruit and nut trees.