Vermiculite Soil Amendment

Horticultural grade vermiculite—very fine coarseness (granules slightly larger than sand). Vermiculite is a magnesium-aluminum-iron silicate treated at high temperatures, causing it to expand. It is used as a soil amendment to increase the water and nutrient holding capacity of soil. Vermiculite aerates soil and can be used to treat compacted soil or soil that tends to compact easily. Vermiculite …