Growth Booster is a specifically designed fertilizer concentrate energized with Humic acid. Formulated to increase your lawns vertical and lateral growth. Enhance the thickness of your lawn or speed up growth for new sod and seeding. Simple Lawn Solutions: For developed lawns boost your results by pairing with Simple Lawn Solutions: Lawn Food & Lawn Energizer. Great for any lawn and any grass type. The Features and benefits are: Premium Growth Booster, Increases Seedling Vigor, Enhances Cell Division & Elongation, Increases Chlorophyll Production, Great for Every Grass Type, Ready to Spray Bottle, Enhances Existing Minerals in Soil, Covers 3,200 Square Feet.