Soil Doctor Pulverized Garden Lime is a 100% natural, fast-acting fine powder that can be spread very easily by hand or by using any lawn spreader. Use in your flower and vegetable gardens or on your lawn to supply calcium and magnesium. As an additional benefit, by incorporating lime into your program, your lawn and gardens will better utilize fertilizer treatments. Like our bodies, thriving plants need food and essential vitamins/minerals like calcium and magnesium (from limestone). Many of us know to fertilize our plants, but what if our lawns are acidic? That is, our soil is acidic in nature or "sour". Similar to the pH of our pool water, we also need to check our lawn's pH or measure of acidity. Soil Doctor Pulverized Garden Lime is a natural soil amendment which helps to enhance the "living soil". Just as your lawn needs fertilizer, it also needs vitamins and essential minerals like calcium and magnesium which are found in Soil Doctor Pulverized Garden Lime.