Organifer Primordial Rock Lavameal is the finest quality primordial rock meal available in the market. It is a unique lavameal with the highest concentration of absorbable minerals and the best processing capabilities. Widely versatile, it is perfect for spreading, scattering, or mixing. It is extensively used in gardens as a soil enhancer and is excellent for protecting plants, such as boxwood, from pests. Additionally, this rich lavameal indirectly combats horsetail and other weeds.