Biodynamic practices occur primarily in the vineyard before winemaking ever happens. All the various tasks, from planting, pruning, to harvesting, are regulated by a special biodynamic calendar.
The calendar was originally devised by the ‘high priestess’ of Biodynamics, Maria Thun, who divided days into four categories: Root, Fruit, Flower, and Leaf Days. Each of these holds special properties and has specific benefits in winemaking.
To be certified under either of the two biodynamic wine certifications – Demeter and Biodyvin – vineyards must maintain exceptional soil health and vintners must time their planting schedules with lunar cycles to ensure the best agricultural health.