Vermiculite mixed with soil, makes the soil structure is loose, well lets moisture to the roots of plants. Absorbed moisture, vermiculite gradually releases it back into the soil, feeding the plant with water over a long period. Water-holding capacity of vermiculite is very high. Wet, it catches the water five times its own weight. The use of vermiculite does not weigh down the soil, and allows it to easily aerated, while ensuring a good supply of moisture. Vermiculite provides aeration the plant root system. Improving gas exchange and moisture near the roots not formed stagnant water, which like to settle for harmful plant organisms. Growermetal can be used in pure form for rooting of cuttings and germination of seeds.