One cubic gallon of ecoGeeks, Three Birds™ BioChar is a perfect size for transplanting projects, indoor plantings, seed starting and small garden projects. Treats between .75 and 1.5 cubic feet of soil (one to two standard bags of topsoil)
Not Inoculated: For best results, mix with compost or other source of soil nutrients for up to two weeks before use to ‘charge’ the biochar