If you have ever picked up a bottle of wine with a little Demeter leaf on the label and wondered what “biodynamic” actually means, you are not alone. It is one of those farming terms that gets thrown around a lot, usually alongside “organic” and “regenerative”, and the differences are genuinely confusing. So let’s unpack it – what biodynamic farming is, where it came from, what makes it different to organic, and whether any of it is actually worth paying extra for at the farm gate.
Biodynamic farming is an approach to agriculture that treats the farm as a single living organism. Soil, plants, animals, the people working the land, even the rhythms of the sun and moon – all of it is meant to work as one closed system, with as few outside inputs as possible. It is older than the organic movement (the ideas were first laid out by Austrian philosopher Rudolf Steiner in 1924) and in many ways it is the ancestor of the regenerative agriculture you hear about today.
Where it came from
In the early 1920s a group of European farmers noticed their soils were degrading, seed quality was dropping, and their animals were getting sicker. They asked Rudolf Steiner for help. What he gave them in response was a series of eight lectures that became known as the Agriculture Course – a set of principles and, crucially, a handful of specific “preparations” designed to bring life back into the soil.
Those lectures are the starting point of biodynamics. Nearly a century later, the Demeter certification body (founded in 1928, making it the oldest ecological certification in the world) still audits farms against a version of the same standard.
How it differs from organic
On paper, biodynamic looks a lot like organic. No synthetic fertilisers, no synthetic pesticides, no GMOs, real attention to soil health. But Demeter certification goes quite a bit further than most organic standards:
- At least 10% of the farm must be set aside for biodiversity – hedgerows, wetlands, wild patches. On an organic farm the whole property can be under crop.
- The farm must be (mostly) a closed loop – feed for animals grown on-site, compost made on-site, seeds saved where possible. Inputs trucked in from elsewhere are limited.
- Animals are part of the system – you cannot have a certified biodynamic farm that is purely crops. Livestock provide the manure, the manure feeds the soil, the soil grows the food.
- The preparations – a set of nine herbal and mineral compost amendments that are unique to biodynamics. More on these below.
Organic is fundamentally about what you don’t do (no synthetic chemicals). Biodynamic is about what the farm is – a self-contained, diversified ecosystem that produces its own fertility.
The preparations, and the part that gets people arguing
Here is where biodynamics attracts the most scepticism. The nine biodynamic preparations include things like cow manure fermented inside a cow’s horn buried over winter (preparation 500), ground quartz in a horn buried over summer (preparation 501), and composts made from yarrow, chamomile, nettle, oak bark, dandelion and valerian. Some practitioners also time planting and harvest to the lunar calendar.
Conventional agronomy is not kind to this stuff. The evidence that horn-manure does anything beyond what good compost already does is mixed at best, and the spiritual framing around Steiner’s ideas puts a lot of people off.
That said, a curious thing keeps happening when researchers compare biodynamic farms to conventional and even organic neighbours: the biodynamic soil tends to have more microbial life, better structure, and better water-holding capacity. The reason may be less about the horn itself and more about the rest of the package – the biodiversity buffer, the closed loop, the attention, the small scale, the farmers who chose this path because they care. Whatever the mechanism, the outcomes are often worth paying attention to.
Where technology fits in
Despite the 1920s origins and the cow horns, modern biodynamic farms are not luddite operations. Soil sensors, drone imagery, electric tractors, weather-station data, herd-health apps – all of it shows up on serious biodynamic farms. The tools just serve a different goal. Instead of maximising yield per hectare this quarter, the aim is to keep the whole system in balance so it can keep producing, with less and less input, for decades.
Is it worth buying?
Biodynamic produce almost always costs more – sometimes a lot more – than conventional or even organic. Is the premium justified? Honestly, it depends on what you are buying and why.
- Wine: strongest case. A huge share of the world’s top natural and biodynamic producers are in this category, and the results in the glass are often genuinely different. Worth the splurge.
- Dairy, eggs and meat: good case. You are paying for animals that have lived well, on pasture grown without synthetics, on land set aside for biodiversity.
- Fruit and vegetables: reasonable case if local. Biodynamic produce shipped from the other side of the world loses a lot of its environmental argument.
- Processed products labelled “Demeter”: mixed. You are mostly paying for brand trust at this point.
If you want our honest take: biodynamic, like organic and regenerative, is a label. The label is a shortcut – it does not replace knowing your farmer. If you can meet the person growing your food, see their soil, watch their cows, you do not need the stamp. If you cannot, then Demeter is one of the more trustworthy stamps going.
If you want to find farms in our directory that are working this way, browse the Farms category or explore the Regenerative Growing section of the blog for more on building living soil.
Author: C
