Brand Name: Hi-Yield
*Organic: No
*Product Type: Aluminum Sulfate
*Coverage Area: 533 sq. ft.
*Container Size: 4 lb.
*Product Form: Granules
*When to Apply: Spring/Summer
*Packaging Type: Bagged
*Analysis: 21-0-0.  One of the best available forms of nitrogen and sulfur.  A quick-acting source of nitrogen helps to give green color to plants and promotes rapid growth.  Sulfur is an essential element of soil fertility that helps to acidify the soil.  Promotes stronger plant growth. Application rate: 3/4 pound per 100 square feet.