PRO-MIX® HP® AGTIV REACH® High porosity growing medium, 3.8 cu ftPRO MIX HP AGTIV REACH is perfect for growers that require a growing medium with good drainage, high air porosity and low water retention. The combination of fibrous Sphagnum peat moss and a high percentage of coarse perlite makes this formulation ideal for growers who require a growing medium product that is adapted to their needs for watering flexibility and crop seasonality. PRO MIX HP AGTIV REACH contains a beneficial endomycorrhizae that improves