The Biodynamic Association (BDA) is a nonprofit association of individuals, groups, and organizations who are committed to rethinking agriculture through healthy food, healthy soil, and healthy farms.

Founded in 1938, the BDA is considered to be the oldest sustainable agriculture organization in North America. Biodynamics was developed in the early 1920s by the Austrian philosopher and social reformer Rudolf Steiner. Steiner is considered one of the pioneers of the organic farming movement and biodynamics is considered by many to be the most advanced and holistic form of organic farming and gardening on the planet.

Over the past 77 years, biodynamic practitioners have played a key role in the renewal of agriculture—helping pioneer the early organic farming movement; inspiring the work of Silent Spring author Rachel Carson; piloting the first community supported agriculture (CSA) programs; and demonstrating how to bring health and flavor back into our food.