John & Bobs 00001 6 No Soil Optimizer John & Bob's Soil Optimizer 6lb Organic concentrated humus with calcium and iron to improve soil porosity, structure, moisture retention, nutrient utilization and availability and to promote complex microbial soil life This product is made in United States 6 No soil optimizer Begins working as soon as it's watered into the soil All natural and contains organic sources of iron and calcium Plant, kid and pet friendly Also supports beneficial soil micro organisms