Osmocote Blend 19-5-9 is a professional-grade fertilizer delivering consistent, controlled-release nutrition for up to 12–14 months. This advanced blend combines resin-coated N-P-K with Poly-S coated urea and STEP Hi-Mag micronutrients, ensuring optimal nutrient availability throughout the growing season. Designed for nursery stock, foliage, and landscape use, it is ideal for plants grown in bark-based media or large outdoor containers.