Mills Light Mix is a premium, lightly pre-fertilized potting substrate crafted for vigorous early-stage plant development. Composed of a carefully selected blend of black peat, blond peat, sphagnum moss, coir fiber, and approximately 10-15% perlite, it achieves an airy, well-draining structure that promotes rapid root growth and nutrient uptake. The substrate comes fortified with an NPK ratio of approximately 14-16-18, providing essential nutrition during the first one to two weeks of growth without the need for additional fertilization. With an EC around 1.2-1.4 mS/cm, Mills Light Mix delivers a balanced environment that’s pH stable and gentle enough for seedlings, cuttings, and young plants. 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.