Lunar & cosmic calendar for plant vitality & resilience
The contribution, measured
Time horizon: Ongoing
How it contributes
It guides the timing of preparation applications and green work, integrating them into a coherent rhythm.
What to measure for this pairing
Why this goal matters
Biodynamics seeks balanced, resilient vines through the silica preparations, medicinal plants (horsetail, nettle) and calendar work. The aim is a vine that ripens well and better withstands stress and disease.
Resilience comes mostly from the system as a whole — living soil, vigour balance, biodiversity — complemented by the preparations. Documenting the programme lets you assess the effect over seasons.
Goal indicators
Market & certification: Plant resilience underpins the reduction in interventions that biodynamics values.
How to apply the practice
- 1Check the calendar for the day type and sap phase.
- 2Align preparations and work with the appropriate day.
- 3Favour fruit days for tastings and certain operations.
- 4Log the dates to evaluate over time.
Frequently asked
Does the biodynamic calendar have a scientific basis?
The effects attributed to lunar/cosmic rhythms are debated and not scientifically settled. Many growers use it as a planning discipline and associate it with better tastings; Demeter certification values working the calendar.
Do I need to follow the calendar for everything?
In practice you prioritise applying the preparations and certain operations and tastings; weather and agronomic conditions always come first.
Same practice, other goals
Same goal, other practices — Plant
How GrapeFlow helps
The proof Demeter certification demands — logged by plot and date.
Biodynamic calendar
Root, leaf, flower and fruit days and the lunar phases in GrapeFlow, to plan preparation applications and work in step with the calendar.
Electronic field notebook
All operations — compost, cover, animals, dynamisation — logged by plot, ready for certification.
Tasting notes & analyses
Per-lot tastings and analyses over time, to relate the biodynamic programme to how the wine evolves.