Intro to Biodynamics Weekend ft. Jennifer Greene
What changes when we stop approaching the land only as something to manage and begin approaching it as something we can learn from?
This two-day intensive at the Horn Farm Center offers an experiential introduction to biodynamics as a practical, open-ended inquiry into the living relationships among soil, water, plants, animals, and the wider rhythms of the farm.
Through fieldwork, experiments, shared observation, and conversation, participants will explore circular soil chromatography, the biodynamic compost preparations, celestial planting rhythms, and the making, stirring, and application of BD500 horn manure. Participants may also bring soil from a garden, farm, or landscape they tend for use in the chromatography work.
Allen Clements of Dark Hollow Biodynamic will lead the weekend alongside special guest educator Jennifer Greene, founder and director of the Water Research Institute in Blue Hill, Maine. Jennifer will guide participants through hands-on experiments examining how water moves, creates form, and supports life.
This program is open to gardeners, farmers, educators, land stewards, naturalists, artists, and anyone curious about developing a more participatory relationship with the living world. No previous experience with biodynamics is necessary. Curiosity is enough.
Full-weekend registration is encouraged. A limited number of independent registrations will also be available for Jennifer Greene’s water-observation session on Saturday afternoon.
November 14–15, 2026
Horn Farm Center for Agricultural Education
4945 Horn Road
York, Pennsylvania