Biodynamic Agriculture

Updated: July 2026
Glossary Anthroposophy 4 min read
Biodynamic Agriculture n.

A regenerative farming method founded by Rudolf Steiner at Koberwitz in 1924, treating each farm as a living organism nourished by nine cosmic preparations.

Biodynamic agriculture is the farming system Rudolf Steiner founded across eight lectures at Koberwitz in June 1924. It treats each farm as a self-contained living organism, asks the farmer to read the rhythms of sun, moon, and zodiac, and uses nine numbered preparations (500 through 508) to draw etheric and cosmic forces into soil, compost, and plant. Demeter is its certification body.

Truly, the farm is a living organism. Above, in the air, it evolves its astrality. Fruit-tree and forest by their very presence develop this astrality. And now when the animals feed on what is there above the Earth, they in their turn develop the real Ego-forces. These they give off in the dung, and the Same Ego-forces will cause the plant in its turn to grow forth from the root in the direction of the force of gravity. Truly a wonderful interplay, but we must understand it stage by stage, progressively, increasingly.

Rudolf Steiner, Agriculture Course (GA 327, Lecture VII, 15 June 1924, Koberwitz)

The Koberwitz lectures arrived in answer to a practical crisis. German farmers in 1923 came to Steiner with declining seed vigour, shorter lucerne rotations, and rising livestock disease. Their question was simple. What had been lost. Steiner's answer began with the passage above. The forces that build a plant do not rise from the soil alone. They flow inward from the cosmic circumference, met by the mineral life of the ground, and the plant kingdom stands at exactly that meeting place. Biodynamic preparations are designed to amplify the meeting. Horn manure (500) buries cow horns packed with manure through winter to concentrate the soil's downward, life-giving forces. Horn silica (501) does the inverse, gathering summer light into ground quartz. The six compost preparations (502 through 507) work yarrow, chamomile, nettle, oak bark, dandelion, and valerian into the heap so that astrality and etheric forces interpenetrate properly as the pile breaks down.

Biodynamic farmers today, certified through Demeter on more than 250,000 hectares across 65+ countries, plant by lunar and zodiacal calendars, keep livestock as part of the farm organism rather than as inputs, and treat the soil as a living being with its own breathing. The practical commitment is what differentiates the work from organic certification. Demeter requires the preparations, the on-farm closed cycle, and a farm-as-organism approach. What Pfeiffer called the birth-hour of a world agricultural movement, on that summer afternoon in 1924 when the first horn was lifted from the Sonnenhof garden, has become the longest continuously practised regenerative system on earth. For the shorter umbrella entry covering the everyday usage of the term (vineyards, certified farms, the planting calendar), see Biodynamic.

Back to blog