Vermiculite is a mineral which obtained from volcanic magma source. It is very mild and sterile. It has a property of rapidly uptake and slowly give back fertilizer for feeding plants. It can be hold inside all nutrient that the plant needs and very long-lived. This mineral is odorless and clean and doesn't contain pathogens, disease, etc. Insoluble in water and does not react with chemicals. Helps of regulation of environment ph. Due to be mild, provide formation numerous small air space and good aeration in root zone. This situation, provide better root growth.