PRO-MIX® HP is the perfect product for growers who need a growing medium with a high drainage capacity, greater air porosity and lower water retention capacity. It is designed for use with various kinds of crops such as annuals, foliage plants, potted flowering plants, greenhouse vegetables and hydroponic crops. Contains mycorrhizae, which helps plants develop a bigger root system that will improve the uptake of both water and nutrients, giving stronger, healthier plants.