10 Best Tree Fertilizers 2025 in the United States

Miracle-Gro Tree and Shrub Plant Food Spikes are designed to enhance the health and appearance of trees and shrubs in your garden. With an easy application method, these spikes deliver essential nutrients directly to the roots, which is a significant advantage for ensuring effective nutrient uptake. They cater to a variety of trees, including deciduous, flowering, and evergreens, making them versatile for different types of landscaping. The simplicity of application—just place them around the tree's drip line in spring and fall—makes it user-friendly, even for gardening novices.

BioAdvanced Tree and Shrub Concentrate is designed primarily for those looking to enhance the health of their trees and shrubs while also tackling pest problems. The strength of this product lies in its dual functionality as both a fertilizer and an insecticide. With a slow-release formula, it nourishes plants over time, which is beneficial for long-term plant health. The product's systemic protection ensures that it works from the roots up, making it effective against a variety of pests like Japanese Beetles and Aphids. Users appreciate the convenience of just one annual application, which simplifies the care routine for busy gardeners.

The Old Farmer's Almanac Tree & Shrub Fertilizer Spikes offer robust nutrition for trees, evergreens, and shrubs with a nutrient-rich 13-3-3 formula. This formula includes 13% nitrogen for plant growth and color, 3% phosphorus for healthy fruiting and blooms, and 3% potassium for strong roots. The fertilizer spikes are easy to use and only need to be applied twice a year, in early spring and late fall, making them convenient for busy gardeners.