By far, the standard of mixes that Lambert Peat Moss has to offer. Lambert General Purpose Mix media provides excellent aeration, high water retention and good drainage. Made from a blend of coarse blond Canadian sphagnum peat moss, coarse perlite and medium vermiculite. This substrate has a starter charge of macro and micro nutrients. A balanced pH with calcitic and dolomitic limestone and a wetting agent for thorough water penetration. Uniform plant growth can be expected from conventional flood and overhead irrigation.