Lloyd Nelson has been practicing the art of biodynamic agriculture for over twenty years, working extensively on biodynamic projects across the U.S. He is a preparation maker, builder, artist, farmer, arborist, biodynamic educator, and consultant. He is co-founder of Biodynamic Source — a Colorado based non-profit specializing in high-potency biodynamic preparations — and he owns and operates a biodynamic spray, fertilizer, and consultation service. He has worked with small and large-scale farms, vineyards, and orchards to transition to sustainable biodynamic land management and Demeter Biodynamic certification.