-Gro Shake N' Feed All Purpose Plant Food, 4.5 lbs. is specially formulated to help your plants grow stronger, more vibrant, and more productive d to unfed plants. This all-purpose plant food contains vital micronutrients along with added natural ingredients that nourish both above and below the soil. It includes kelp, earthworm castings, feather meal, and bone meal all combined in one particle to feed the beneficial microbes in the soil. These microbes break down the natural ingredients into nutrients that support root strength and development, enhancing water efficiency. This plant food is i for use anywhere, whether in the ground or in containers, and provides feeding for up to three months.