While Miracle-Gro can be used in an AeroGarden, it is not recommended as it is designed for soil-based growing and may cause clogs in the system. Instead, AeroGarden provides its own line of liquid plant food specifically formulated for hydroponic growing in the AeroGarden system. The liquid plant food contains all the necessary nutrients that plants need to thrive and is specially designed to avoid clogging the system. [1]