Garden Biochar
Why buy expensive premixed Biochar compost when you can make your own with Demeter and save money?
Add Demeter Biochar to your preferred compost for a tailored biochar boost.
Improve soil health, boost your containers and speed up composting with Demeter Biochar.


Biochar for Healthy Soil and Healthy Plants
The incredible microporous structure of Biochar provides conduits for moisture, air and nutrients within soil and increases the space available for beneficial microorganisms to colonise.
By increasing moisture and nutrient retention, reducing soil compaction and boosting aeration, Demeter Biochar can improve soil structure and health, promoting healthier plant growth. Healthy soils are teeming with as many as 1 billion individual bacteria in every gram, as well as meters of fungal hyphae. Demeter’s pure wood Biochar provides the right environment for your soil’s microbiome to thrive.

Biochar for Easy Growing
Adding Demeter Biochar to beds and containers can reduce the need for watering and fertiliser application.
The microporous structure of Biochar allows it to retain and release water, increasing the moisture availability of the soil environment. By improving soil structure, Demeter Biochar also improves the movement of moisture through soil, preventing areas from becoming waterlogged and anaerobic.
And it does the same for nutrients and fertiliser!
With Demeter Biochar, you can retain moisture and nutrients, reducing the time and money you need to spend watering and applying fertilisers. This is great for you, your plants and our planet.
Biochar for Speedier, Better Composting
By increasing air availability in your compost heap and promoting the growth of crucial microorganisms, Demeter Biochar can speed up the composting process by up to 20%.
Additionally, biochar’s nutrient retaining structure reduces leakage of calcium, potassium and magnesium, improving the quality of the compost.
Even better, by increasing aeration and healthy decomposition, Demeter Biochar can reduce the creation odours in composting- and its porous structure absorbs odours as well as methane and nitrous oxide.
Application guides for Demeter Biochar
Products
-
Composting Boost 10L
Regular price £15.00 GBPRegular priceUnit price / per -
Composting Boost 20L
Regular price £26.50 GBPRegular priceUnit price / per -
Horticultural Biochar 10L
Regular price £17.50 GBPRegular priceUnit price / per