Miracle-Gro® Shake 'n Feed® all-purpose plant Food is specially formulated to help grow stronger, vibrant and more productive plants (versus unfed plants). Full of essential nutrients that help feed and nourish above and below 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.