Horticultural Perlite 20L Horticultural Perlite 20L by Biovita is a raw material of volcanic origin. It is a natural, biologically pure substrate. It is used in gardening, agriculture, and greenhouse cultivation, as an addition to gardening soil or its substitute in hydroponic cultivation. It is a mineral raw material. Advantages: porous, thanks to which has a high absorption capacity of water and components soluble in it absorbs water , protecting it from evaporation and soaking into the ground loosening the substrate creates excellent conditions for the development of the root system reduces problems with the lack of water absorption of heavy soil is a natural moisture regulator substrate aerates soil The best results will be achieved by mixing perlite with soil, peat, humus or other substrate in a ratio of 1 liter of perlite to 3 liters of substrate. You can also plant plants directly in perlite using appropriate fertilizers for hydroponic cultivation.