Please Note: Orders Of 2 Bags Or More Will Cost An Extra 1 Per Bag To Cover Carriage Costs - Price Will Update At Basket.carbon Gold Grochar Biochar Tree Soil Improver Is Proven To Significantly Reduce Losses And Improve The Vitality Of Transplanted And Established Trees.a Study By The Companys Research Labs On 2,000 Established Ash Trees Over Three Years In Essex Found That While A Third Of The Established Trees Monitored Have Become Infected With Chalara Ash Dieback, None Of The 20 Trees Which Had Enriched Biochar Applied To Their Roots Were Hit.ideal For Decompacting And Amending Waterlogged Soils, And Stabilising Soil Moisture In Sandy Soils, Enriched Biochar Allows Trees To Grow Strong, Healthy Root Systems In The Harshest Conditions.carbon Golds Peat Free Biochar Products Are Used By Professional Growers, Allotments And Home Gardeners Because They Deliver Superb Results.bio Char Is Enriched With Mycorrhizal Fungi, Seaweed And Wormcasts. For Trees, Shrubs, Roses, Bare Root Stock And Hedging.grochar Biochar Tree Soil Improveroptimum Application Is 5% Of Soil Volume When Planting Or Transplanting Trees Or Woody Plantsplanting Or Transplanting: Apply In And Around The Root System While Back Filling For Optimum Resultsestablished Tree Using Air-spade:apply Around Base Of Tree And To Soil Up To 1m Metre Away, To A Depth Of At Least 20-40cm. Work In The Required Amount Of Water. Ensure That Personal Protective Equipment Is Worn By The Operator To Avoid Dust Hazardestablished Tree Using Spade Or Fork:loosen The Ground Around Base Of Tree, Taking Care Not To Disturb Major Roots Or Root Collar. Work In The Required Amount And Waterto Apply As A Top Dressing:lightly Rake In And Cover Over With A Mulch Or Soil To Keep The Enriched Biochar In The Required Location To Avoid Wind Dissipationsupplied In 12kg Bag