This quality horticulture sunshine mix is recommended where high air capacity and fast drainage are needed: during winter months, with water and salt-sensitive crops, or where frequent leaching is required. In total, it’s 3.8 cubic ft. of the compressed mix. Seed starting, cuttings and is also suitable for plug culture. The growing mix contains Canadian sphagnum peat moss, perlite, major and minor nutrients, gypsum, dolomitic limestone, and a long-lasting wetting agent. Setting the standard for generations. It contains dolomitic limestone to adjust media pH to 5.0-7.0 and to provide calcium and magnesium. Gypsum is added as a source of sulfur and calcium. In addition, has a highly soluble nutrient charge equivalent to about one liquid feeding with a complete fertilizer, plus trace elements at a normal rate.