Use from September to November to toughen your lawn for the upcoming winter. For ideal results, apply using an EverGreen or Scotts spreader to ensure even coverage. After applying this product in accordance with the label instructions, keep children and pets away from treated areas until the granules have been watered in thoroughly and the areas have dried. Added Seaweed aids the roots to establish, so as to become stronger against the harsh winter conditions. Kills moss within 7 days; the moss will blacken as it dies, after 2 weeks the moss must be raked out. Strengthens roots and toughens the grass to help it withstand harsh winter weather.