Miracle-Gro Potting Mix, 2 CF BagYour plants want to show off. Give indoor and outdoor container plants the right ingredients to grow bigger and more beautiful with Miracle-Gro Potting Mix. Our specially formulated mix feeds for up to 6-months for more blooms and more color. Use with indoor and outdoor container plants. Grows Plants Twice as Big versus unfed plants. Grows plants twice as big (versus unfed plants). Feeds up to 6-months. More blooms for more color (versus unfed plants). For indoor and outdoor container plants. For use in containers.