Martin Crawford has spent more than 20 years in organic agriculture and horticulture, and is director of the Agroforestry Research Trust, a nonprofit charity that researches temperate agroforestry and all aspects of plant cropping and uses, with a focus on tree, shrub, and perennial crops. The Trust produces several publications and a quarterly journal, and sells plants and seeds. He is the author of several books, including A Forest Garden Year and How to Grow Perennial Vegetables.
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