Concentrated soluable calcium, humates, and an organic acid in quick release. Contains 35% of a highly-soluable form of calcium, which is readily available for plant uptake or pH adjustment; low pH causes moss, barespots and weeds to grow in the lawn. Synergistic effect on organic fertilizer, causing it to work more effectively by conditioning the soil. Boosts lawn color, reduces stress, and improves soil texture to aid in water uptake. Easy-to-spread pellets. Can be used throughout the whole yard. Great for establishing new seedings. Apply at any time and in combination with any other product.