Plant Health Care
Tree Fertilizing: Nourishing Nature’s Giants
| Jan 19, 2025
Tree deep-root fertililzation truck. Photo: International Society of Arboriculture, Bugwood.org
As caretakers of our environment, we understand the importance of trees in maintaining ecological balance, providing shade, and enhancing the beauty of the Clarkston area. However, to ensure that these towering giants thrive, proper tree fertilizing becomes essential. Understanding the basics of tree fertilization can make a significant difference in the health and longevity of your trees.
Why Fertilize Trees?
Trees, like all living organisms, require a variety of nutrients to grow strong and healthy. While they can often draw nutrients from the soil, urban environments like Clarkston often have depleted soils that may lack essential elements such as nitrogen, phosphorus, and potassium. Fertilizing provides the necessary nutrients, particularly during critical growth periods, enabling trees to flourish.
When to Fertilize
Timing is crucial. The ideal time to fertilize trees in Clarkston is in early spring or fall. Applying fertilizer during this time coincides with the time of year tree roots are most actively growing.
Choosing the Right Fertilizer
Selecting the right fertilizer is fundamental. Conducting a soil test can help determine if there are any micronutrient deficiencies in your landscape. But for most trees you will want a ‘complete’ fertilizer - labeled as a mix of nitrogen (N), phosphorus (P), and potassium (K).
Application Techniques
Effective application is just as important as choosing the right product. A granular, surface application can be done, but any grass under the trees will have the first opportunity to absorb the nutrients before they reach the deeper tree roots. The best method to fertilize trees is deep-root fertilization. The soil probe used with this technique places the tree fertilizer below most grass roots.
By understanding when and how to fertilize your trees, you can ensure that your trees not only survive but thrive. Embrace the practice, and nurture nature's giants!