SoilMatrix(tm) is an easy to use high quality pure biochar. Blend it into compost and top dress it on your garden or flower bed to achieve great plant yields for vegetables and lush flowers for planters. Biochar improves plant health by increasing nutrient uptake. SoilMatrix Biochar is Canadian Food Inspection Agency Approved! $20 for 7 litres (1.15 kgs net) plus shipping.