Cultilene, set up in 1979, is one of the world’s leading substrate producers. These stonewool products are made from a specially developed type of mineral wool. Cultilene growing blocks, slabs and plugs are very firm with a very high consistency and a thin structure that give optimum root development, leading to increased yield. This growing media is completely pathogen-free. It has a high water-holding-capacity and a high porosity allow easy root penetration, good water movement and drainage.