Encourages Greening and Growth: Darker Green Liquid Iron contains Nitrogen and Iron to help you achieve that dark green color. Nitrogen and Iron Formula: Darker Green Liquid Iron was developed to deepen the green of your lawn, garden and indoor plants. Maintain Lawn & Treat Nutrient Deficiencies: Darker Green Liquid Iron is perfect for maintaining lawn vigor or treating lawns deficient in Iron. Great For All Grass types: Including Bermuda, St. Augustine, Zoysia, Bahia, Tall Fescue, Fine Fescue, Ryegrass & Kentucky Bluegrass. Application Rates for Lawn and Garden: Versatile Formula can be used on Turf Grass, Ornamentals, Young Plants, Flower Beds, Potting Soil, Young Trees, Garden and Hardy Plants. Used Commercially: Used by Farmers and Professionals on Agriculture and Turf Grass all around the world. Liquid Iron Fertilizer Blend Concentrated Solution: Great to enhance the deep green of your lawn, or use on garden. Proprietary Fertilizers Made in the USA: All Simple Lawn Solutions products are expertly manufactured with our proprietary manufacturing method, and proudly in the USA by a family-owned company. Darker Green Liquid Iron is a premium iron-based fertilizer enriched with Nitrogen and Manganese. This carefully formulated solution is designed to support the visual color of your lawn and garden. It provides key nutrients that contribute to a rich, vibrant appearance, especially in areas where nutrient levels may be low. Our formulation contains Nitrogen and micronutrients. Backed by years of product development, this formula is crafted with precision to provide consistent, high-quality results for a variety of outdoor and indoor plant types. Please note that if your lawn or plant's current iron levels are sufficient, adding an iron supplement will likely result in little to no visual response. This product is best used when iron levels are below sufficient.