Pro-Mix? HP Biofungicide + Mycorrhizae is a high porosity peat-based growing medium, ideal for water sensitive crops, rooting 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; High drainage capacity; Designed for water sensitive crops; Ideal for low-light and high humidity growing conditions; Contains Mycorrhizae mycorrhizal inoculum (Glomus intraradices); Contains Biofungicide – (Bacillus pumilus ? strain GHA-180).