HORTIMED PEAT MOSS SUBSTRATE is a mixture of natural white peat moss (H1-H3) ,black sphagnum peat moss (H5-H7) , enriched with our unique ingredient HORTIMED organic lake mud, pH balanced and enriched with all necessary additives and nutrients like: NPK , Clay, wetting agent, Microelements, Perlite. All our products are subject to most strongest quality control standards in every stage of production, starting from harvesting, raw material selection ,product mixing till packaging.