Pro-Mix HP/Mycorise Pro from Premier Horticulture is a high porosity peat/perlite-based growing medium. This mix ensures optimum growth, especially when high air-capacity and extra drainage are required. It is ideal for perennials, flowering plants, hanging baskets, water-sensitive crops, rooting cuttings and low-light growing conditions. Mycorise Pro ensures stronger, healthier plants due to more root systems and better fertilizer updates.