Miracle-Gro Shake 'n Feed All Purpose Plant Food is specially formulated to help grow stronger, vibrant and more productive plants (versus unfed plants). It contains vital micronutrients, plus added natural ingredients, to nourish above and below the soil. Formulated with kelp, earthworm castings, feather meal and bone meal in an all-in-one particle to feed the microbes in the soil. Microbes break down natural ingredients into nutrients that support root strength and development which increases water efficiency. You can use Miracle-Gro Shake 'n feed all purpose plant food anywhere: In ground and in containers for feeding up to 3 months. Feed your plants with the help of Miracle-Gro Shake 'n Feed All Purpose Plant Food.