When I read the list of ingredients, I knew I had to have a bag of these supplements. I'm growing three plants in a 3x8 closet, and they have to grow. At 72, I have been an avid gardener for years. Living in Texas, called the clay state to most, I know how much supplements amend the soil. My go-to's are composted chicken manure, vermiculite, perlite, coco coir, etc., and mix this all up in my cement mixer. Since the crop I am growing in my closet is so much more precious, I am making sure Build A Soil is part of my blend. Let you know as I nurture my babies.