Oak bark decoction

Oak bark decoction | A plant-based spray used in organics and Biodynamics. The oak bark decoction is derived from the bark of the same strain(s) of oak gathered in the same way as for the biodynamic compost preparation 505. Oak bark decoction can be used to complement...

Stinging nettle liquid manure

Stinging Nettle Liquid Manure | This plant-based spray is the most commonly used liquid manure in vineyards. It is made from the stems and leaves of stinging nettle which are cut before or at the beginning of flowering (Sattler et al: 1992, p.77). Its effect is...

Pfeiffer Compost Starter

Pfeiffer Compost Starter | A plant-based spray used in Biodynamics created by Dr Ehrenfried Pfeiffer. He designed his compost starter for industrial and urban waste, trialling it commercially between 1950 and 1952 whilst directing a municipal composting program in...

Liquid manures

Liquid Manures | Liquid manures are made by leaving plant material to decompose and ferment in water over a period of days, weeks or even months. Typically wine-growers fill old barrels with around 100 to 200 litres of rain water, plunge as many armfuls as they can of...

Comfrey liquid manure

Comfrey Liquid Manure | Comfrey (Symphytum officinale) is a popular liquid manure in organic farming and home gardening. Like stinging nettle, comfrey is a rich source of nutrients and trace elements: iron, phosphorus, calcium, potassium, sodium, manganese, chromium...

Stinging nettle tea

Stinging nettle tea | The most frequently used and arguably most effective plant-based spray used on Biodynamic vineyards is made from the shoots and leaves of stinging nettles. These can be picked in spring (Pierre Masson, 1998: p.112) or until mid-summer as for the...