Matthias Thun

While the core of this annual biodynamic Bible remains the calendar, every year there are special features, which this year includes a very useful section of tips for growing different plants, companion planting preparations and animal and insect pests. Gallagher itself contains detailed advice as well as a glossary of crop types and an extensive bibliography. Essential reading for organic gardeners, and for the technically minded there is now an app that adjusts to your time zone.