Pro-Mix? HP Biofungicide + Mycorrhizae is a high-porosity, peat-based growing medium, ideal for water-sensitive crops, root cutting and/or low-light growing conditions. Pro-Mix? HP Biofungicide + Mycorrhizae is suitable for a wide variety of horticultural plants, especially when high air capacity and extra drainage are required. Features high perlite, peat-based growing medium with high drainage capacity. Designed for water-sensitive crops. Ideal for low-light and high-humidity growing conditions. Contains mycorrhizae mycorrhizal inoculum (glomus intraradices) and biofungicide (bacillus pumilus ? strain GHA-180).