Learn which plants thrive in your Hardiness Zone with our new interactive map!

How to Fertilize Flowering Trees

By Tammy Wood ; Updated September 21, 2017

Fertilizing flowering trees is a great way to enhance the beauty of your landscape. Proper fertilization should be done annually to encourage blooming and increased healthy growth. When choosing a fertilizer for your flowering trees you can use either a liquid or powdered form; they provide equal benefits to the trees.

Apply fertilizer in the fall or early spring. Choose a fertilizer that is a bloom booster for your flowering trees, to increase the bloom production in the spring. This type of fertilizer is a 5-30-5 blend, which is a compound blend of 5 percent nitrogen, 30 percent phosphorous and 5 percent potassium.

Spread the fertilizer at the base of the flowering tree. The amount of fertilizer depends on the age and size of the tree. As a general rule use 1 3/4 to 2 pounds of fertilizer for every 100 square feet of soil at the base of the tree. If using a liquid fertilizer that requires dilution with water, follow the directions on the package.

Water the soil around the tree thoroughly to increase the absorption of the fertilizer. This step is unnecessary if you use a liquid fertilizer.


Things You Will Need

  • 5-30-5 fertilizer
  • Water source
  • Sprayer, if using a liquid fertilizer


  • If using a sprayer to fertilize, set the spray to a direct spray in order to place the fertilizer at the base of the tree.

About the Author


Tammy Wood has been writing for more than 15 years, and has been published in the Chicken Soup For the Soul books, "Parenting" magazine and several websites. Wood serves as the director of online marketing for 12 organizations and creative director for BTC Interactive, a newsletter and article archive. She received a degree in business management from the University of Washington.