With one application of Miracle-Gro® Shake 'n Feed® All Purpose Plant Food Plus Weed Preventer1, you can feed your plants AND prevent weeds for up to 3 months! For maximum weed prevention, apply the product as early as possible during the growing season before weeds have emerged. Use it in your garden bed around established flowers, vegetables, groundcovers, shrubs, and trees. Keep your garden looking its best with the help of Miracle-Gro®.