The extraordinary properties of rockwool were discovered in the 1850s in Hawaii, where wool was found in nature, near the famous Mauna Loa volcano. Scholars realized its incredible insulating and fire protection properties but could not foresee that their discovery would lead to revolution agriculture about a century later. Rockwool cultivation is used with modern structures, such as greenhouses and cultivation wardrobes, and guarantees excellent ventilation of the radical apparatus as well as excellent production, improving the quantity and quality of the crop. Experience shows improvements in different crops and in different crop areas, as well as greater homogeneity and a significant reduction in waste. Rockwool, being a substrate that develops out of the soil, does not require any specific fertilization treatment, fertilizer or any other nutrient solution.