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7 Tips on Fertilizing Trees and Shrubs

Published on
December 11, 2023

If you want to have a healthy tree on your property, you must ensure your soil has plenty of nutrients and organic matter. If the tree doesn’t get these materials from the soil, it could wither and die. Fertilizing your tree is a great way to boost its health, appearance, and lifespan —all while helping benefit the environment. 

Below are seven tips on fertilizing a tree or trees:

  1. Choose the right fertilizer: You want a fertilizer that’s right for your situation. Fertilizers include a mixture of nitrogen, phosphorous, and potassium. Generally, use a fertilizer with an NPK ratio of 10-10-10 or 12-4-8.
  1. Apply fertilizer from early spring to late fall. Those are the best times to fertilize trees in most areas. Don’t fertilize during the winter. It’s the worst time to do it.
  • Apply fertilizer over the root zone: This area is beneath the tree’s canopy. Spread the fertilizer evenly using a broadcaster or drop spreader.
  • Water the fertilizer thoroughly: Watering helps the nutrients penetrate deep into the soil.
  • Sandy soil drains faster than clay soil: You may need to fertilize sandy soil more often than clay soil.
  • Fertilize in the fall: If you live in New England, where it can get cold, fertilize in the fall. Plants will store nutrients all winter to return strong in the spring.
  • Avoid overfertilizing: That can not only damage plants, it can also pollute the environment. Follow the directions on the fertilizer label.

These tips can help you when it comes to taking care of your trees and shrubs. If you have any questions regarding fertilization, contact an arborist or RI Tree. Asking for help from a professional never hurts.