Cannabis Cultivation: How to Supercharge Your Cannabis Grow Using Biochar / Green Flower February 28, 2021 cbdnews Growing Cannabis Comments Off on Cannabis Cultivation: How to Supercharge Your Cannabis Grow Using Biochar / Green Flower Green Flower Grow Director Derek Gilman and Grotek Nutrients’ Simon Hart discuss Biochar – what it is (and isn’t), how it reacts with microbial organisms in the …