Improves existing soil to build strong roots. Specially formulated to holds up to 25% more water than native soil. Feeds up to 3 months with Miracle-Gro Continuous Release Plant Food. A complete ready-to-use soil to grow beautiful roses. Specially formulated blend of forest products; sphagnum peat moss, manure, iron, bone meal and a wetting agent to give roses the best growing environment possible. Contains bone meal for better blooming and strong root development, plus iron to prevent leaf yellowing.