PRO-MIX Root Booster is a specialized fertilizer formulated to promote strong root development and establishment in seedlings and transplants. The 5-15-5 NPK ratio emphasizes phosphorus to encourage vigorous root growth while supporting overall plant health. This 1.2 kg package provides an economical supply for home gardeners and small-scale growers looking to give their plants a competitive advantage during critical growth stages. Ideal for use when transplanting, starting seeds, or revitalizing established plants that need a nutrient boost.