Miracle-Gro Tree & Shrub Food Spikes $12

This 12ct Pack of Miracle-Gro Tree & Shrub Plant Food Spikes drops from $15.49 to $12.39 at Amazon. This is one of the best-selling garden products at Amazon each year, and we've been waiting to see them drop in price for spring. Use them every spring and fall to improve foliage and growth on your trees and shrubs. Shipping is free with Prime. Editor's note: These are very easy to use and affordable compared to a lot of other highly rated tree fertilizers. I use these every year!