Feed your biggest and most impressive plants - your trees! - with Miracle-Gro Tree and Shrub Plant Food Spikes. These plant food spikes contain natural ingredients, and provide nutrition directly to the roots where trees need it most. In addition, these tree fertilizer spikes promote vibrant color and foliage. For use with deciduous, flowering, and evergreen trees and shrubs, these plant food spikes are also great for acid-loving plants. Apply once a season in spring and fall for best results. To use, place the enclosed plastic cap on top of the spike and drive it into the ground around the tree or shrub following the drip line (as shown in the label illustration). Remove the plastic cap and continue to drive the spike 2 inches below the soil surface. Spikes should be placed at least 3 feet apart. For small trees and shrubs with a drip line closer than two feet, insert spikes two feet away from the center of the tree or shrub. This package contains 12 Miracle-Gro Tree and Shrub Plant Food Spikes.