Mills Soil & Cork

The Mills Soil & Cork (also marketed as Ultimate Soil with Cork) is a thoughtfully formulated substrate that blends peat, coco chips, fine cork, and organic nutrients to support robust plant development during the early stages of growth. The addition of cork enhances drainage and aeration, while peat and coco deliver moisture retention and gentle nutrition that sustains plants for approximately four to six weeks. This all-in-one medium requires no pre-mixing or supplemental feeding during that period, allowing seedlings, cuttings, or plants transplanted into larger pots to thrive with steady, balanced root development. Mills substrates and nutrients are a great solution for providing your plants with the support they need to grow. So don’t hesitate to check out their Organics Base or the Mills Seed Starter Kit.