Get the best of both worlds with Miracle-Gro® tree and shrub plant food spikes. These spikes allow for easy feeding of your trees and shrubs, plus provide plentiful foliage and vibrant colour. These spikes are pre-measured, so they’re ready to use and easy to store. Each fertilizer spike contains essential nutrients and organic ingredients to nourish plants above the soil and below the ground deep into the root zone. To help your deciduous and flowering trees grow strong all season long, use Miracle-Gro® tree and shrub fertilizer spikes in the spring and again in the fall.