A professional and organic greenhouse quality mix made for seed starting. Recommended soil material for -Pots, -Strips, and/or Greenhouses. Can fill -Pots 3" up to 40 pots. Made with Canadian Sphagnum Peat Moss. This mix contains 50% - 60% sphagnum peat moss, vermiculite, coir pith, and lime for pH balance. Natural & Organic Seed Starting Mix is breathable.