Maria Thun Biodynamic Calendar 2025. Over 40 years of ongoing research by maria and matthias thun and others into the influences of the moon, planets and constellations on plant growth has resulted in the publication by them of an annual astronomic. The original, and still the best, biodynamic sowing and planting calendar, trusted by farmers and gardeners.

The original biodynamic sowing and planting calendar ? The original biodynamic sowing and planting almanac, adapted for north american (est) dates and times—essential reading for more than sixty years!