The LECHUZA-PON substrate is stable and inorganic and is excellent for plants. It retains the nutrients which are then released to the plant as needed, adjusts the pH value and stores up to 40 % volume of water while maintaining optimal air exchange. Big fertilizing errors are avoided thanks to the rebalancing properties of the substrate. LECHUZA-PON stores the excess fertilizer and releases it gradually to the plant. LECHUZA-PON consists of pumice, zeolite and lava lapilli and is supplied directly with an NPK fertilizer content (15-9-9 + 3; 3g / L) which sufficiently nourishes the plants with an autonomy of up to one year . LECHUZA-PON is inorganic and therefore almost completely sterile. LECHUZA-PON does not run out and therefore does not need to be restored as is the case with traditional growing soil. Even after years it carries the water and air needed by the plant for constant growth. If you decide to use LECHUZA-PON instead of the traditional soil, remember to water the substrate alternately from above.