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Biochar Tree Soil Improver

Carbon Gold Biochar Tree Soil Improver is ideal whether you are planting a new tree, or looking to revitalise an established one. It promotes root development and reduces nutrient leaching, all of which helps defend against transplant shock and drought stress.

Although we call it Tree Soil Improver, it is actually a perfect and powerful treatment not only for all types of tree but also for shrubs, roses, bare root stock, and hedging. It is FSC® certified and Soil Association approved for organic growing, although is commonly used by conventional as well as organic growers.

Biochar Tree Soil Improver is a compost or soil additive. So, when planting a new tree (or shrub etc) you can simply apply at a rate of one part biochar tree soil improver to nine parts compost/soil. If you are planting in a pot, then one litre of biochar tree soil improver will treat a 10 litre pot. If you are using around an existing tree, then simply incorporate it into the soil around the base of the plant.

Also available as part of our money-saving bundles

Carbon Gold Biochar – Saving the planet one garden at a time!



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100% Organic
Captures Carbon
Environmentally Friendly
Helps Prevent Disease
Improves Plant Health
Reduces Water Bills
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  • Standard postage and packaging is charged at £7.99 up to 20kg in weight. Any additional weight will be charged at a rate of £7.99 per additional 20kg. Any offer on delivery charges can override these charges

    We anticipate that orders will be dispatched within 2 workings day of the order being placed, with a 1-2 day delivery time. Orders will be fulfilled by DPD. Orders over 100kg will be dispatched on a pallet on a 3-5 day economy delivery.

  • By using Carbon Gold biochar, you can bring a physical and permanent change to your soil.

    It improves structure, aeration, water-holding capacity (so less watering), and nutrient retention, and provides a refuge for beneficial microbes which we add to improve plant health.

    Biochar locks carbon into the ground and so reduces CO2 being released into the atmosphere where it is harmful. So, by using biochar products you are not only gaining superb results with your growing, but also reducing your carbon footprint at the same time.

    To find out more about biochar, what it is and what it does click HERE

    Carbon Gold biochar – saving the planet one garden at a time!


    Read our guide on how to apply tree soil improver for further information on:

    • Container size (in litres)
    • Bare root/root-balled/airpot tree girth
    • Bare root whip height
    • Bare root tree girth
    • Mixing with topsoil

    How to use Tree Soil Improver video