EVOLVE organic granular Lawn Fertilizer is derived from feather meal, bone meal, calcium sulphate and sulphate of potash. EVOLVE Organic Lawn Fertilizer is a slow-release formula which will allow your grass to grow at a healthy, natural pace. EVOLVE Organic Lawn Fertilizer contains over 70% organic matter which allows your soil to retain water longer in drought periods. EVOLVE's CLAY BUSTER technology creates pores in your soil system which helps grass roots penetrate deeper into the clay underlay. This means your grass will stay greener, longer between waterings. EVOLVE Organic Lawn Fertilizer is suitable for all lawns including reseeded, newly sodded and existing lawns. EVOLVE Organic Lawn Fertilizer will not burn and is child and pet safe.