Amazon offers the Miracle-Gro Water Soluble All Purpose Plant Food 8-oz. Box for $3.98 with free shipping for Prime members. (Home Depot offers it for the same price with in-store pickup). That's the best price we could find by $3, although we saw it for a buck less in our February mention. Features:
  • safe for all flowers, vegetables, trees, shrubs, and houseplants
  • 1 gallon of diluted product will cover 10 square feet
  • guaranteed not to burn if used as directed