Raw material: mixture of selected sorts of peat, free of weeds, diseases and impurities, different humification grades H3 - H6. Structure medium (other structures are available under special request). Basic additives: calcitic & dolomitic limestone - corrects pH of the substrate, supplies essential plant nutrients Ca + Mg. pH 5,5 – 6,5 (other levels of pH 4,5 -7,0 are available under special request). Fertilizer: compound fertilizer containing N - P2O5 - K2O,1.5 kg/m3, trace elements (other types of fertilizer are available under special request). Wetting agent FIBA ZORB. Rapid wetting and re-wetting, improves drainage, maximizes the applied fertilizers and nutrients.