Gardeners know organic matter is needed to improve poor soil, but it’s expensive and back-breaking to transport and spread truckloads of compost. Simply spread 3 pounds of optimizer per 1,000 square feet to get the same results as working in hundreds of pounds of humus or compost. Add to sandy soil, gumbo clay or other types of poor soil. Goes to work as soon as it’s watered in. All natural and 100% organic, John and Bob’s is guaranteed to start improving soil the season it’s applied. (6 lbs. treats 2,000 sq. ft.)