What is Enriched Biochar

Carbon Gold’s enriched biochar products are used by professional growers, arborists and home gardeners because they deliver superb results.

Our blends are proven to significantly reduce losses and improve the vitality of transplanted and established plants and trees.  They help to retain moisture, increase nutrient availability and create resilient, healthier plants.

The biochar we use is made from pyrolysis of sustainably sourced woody biomass heated in the absence of oxygen. The stability of biochar in the soil (from 50-600 years) has important implications for reducing atmospheric CO2 and other greenhouse gasses, including nitrous oxide and methane, enabling a positive impact on climate change.

We enrich our biochar with multiple strains of mycorrhizal fungi and antagonistic trichoderma, along with Actinomyces bacteria from wormcasts and trace minerals from seaweed.



Improves soil health, nutrition & structure and reduces watering


Maximises nutrient and water uptake; reduce transplant shock


Rich in trace minerals for plant health


Full of beneficial bacteria crucial to healthy root systems





Biochar is a highly porous, high carbon form of charcoal used to improve soil nutrition, growing conditions and soil structure. It is made from untreated waste woody biomass that has been charred at a low temperature with a restricted supply of oxygen, a process called pyrolysis. This process results in a stable form of carbon that is removed from the atmospheric carbon cycle when added as a soil amendment. One tonne of carbon locked away in biochar represents three tonnes of carbon dioxide equivalent being removed from the atmosphere. 

Biochar naturally helps improve soil structure, enhances soil fertility and boosts soil health whilst sequestering atmospheric carbon dioxide for hundreds of years.

Thanks to its microscopic honeycomb-like structure, biochar provides the perfect habitat for beneficial soil microorganisms, such as mycorrhizal fungi and actinomycetes bacteria, to flourish. Biochar also acts like a sponge, significantly improving the water-holding capacity of soil or compost, lessening the risk of drying out and reducing the frequency of irrigation.

It also helps to retain mineral nutrients that would otherwise be leached away by rain. Unlike other soil improvers, biochar does not decompose and will stay in your soil almost indefinitely, enhancing and improving the natural health and fertility of your soil for decades to come.




Knowledge of biochar and the benefits of adding it to soil have been around for millennia. Studies of soil at sites throughout the Amazon Basin suggest that ancient Amazonian civilisations made a primitive type of biochar and added it to their soils to help grow their food. The result was a rich and fertile black earth – or ‘terra preta’ – with a high carbon content, which is still evident today.