Beginning Biodynamics at Horn Farm — November 14–15, 2026
A two-day biodynamics workshop with Allen Clements and Jennifer Greene at Horn Farm Center in York, Pennsylvania. November 14–15, 2026, 9 a.m.–4:30 p.m. each day.
Horn Farm Center is offering a two-day introduction to biodynamics in York, Pennsylvania, on November 14–15, 2026. Allen Clements and special guest Jennifer Greene will lead fieldwork, experiments, and conversation about soil, water, compost, celestial rhythms, and the biodynamic preparations. No prior experience is necessary.
When and where
Saturday and Sunday, November 14–15, 2026
9:00 a.m.–4:30 p.m. each day, Eastern Standard Time (America/New_York)
Horn Farm Center for Agricultural Education
4945 Horn Road, York, PA 17406
The weekend
- Create and interpret circular soil chromatograms.
- Explore celestial rhythms and the biodynamic planting calendar.
- Work with the six compost preparations and the biodynamic spray preparations.
- Prepare, stir, and apply BD500 horn manure.
- Join Jennifer Greene for hands-on water phenomenology experiments.
The program welcomes gardeners, farmers, educators, land stewards, naturalists, artists, and beginners interested in approaching the farm as a living whole.
Instructors
Allen Clements is a biodynamic practitioner and co-founder of Dark Hollow Biodynamic. Jennifer Greene, founder and director of the Water Research Institute, brings more than 50 years of research into water, movement, and form.
Tuition and registration
Full-weekend tuition is offered on a sliding scale: $240 reduced, $285 standard, or $330 pay-it-forward.
A standalone Water Phenomenology session with Jennifer Greene is available on Saturday, November 14, from 1:00–4:30 p.m., for $65. Space in the standalone session is limited; full-weekend registration is encouraged.
Registration closes Wednesday, November 11, 2026. Register by Sunday, November 1, to receive instructions for bringing your own soil sample for chromatography. Horn Farm soil samples will be available for everyone.
Register through Horn Farm Center | Full program details
Registration, payment, and program arrangements are managed by Horn Farm Center. For questions, contact executivedirector@hornfarmcenter.org or 717-757-6441. Lodging information has not been confirmed.
