Fertilizer Enriched: *Moisture Control: *Organic: No *Packaging Type: Bagged *Product Form: Granules *Product Type: Aluminum Sulfate *Sub Brand: *Suitable for Vegetables: *Brand Name: Hi-Yield *When to Apply: Spring/Summer *Where to Apply: *Container Size: 4 *Coverage Area: 533 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 s