UNIVERSITY OF ILLINOIS EXTENSION GOOD GROWING Where the Tree Roots Grow
Did you plant a tree this past spring? How about last fall? Do you have a mature tree that you are caring for? If you answered yes to any of these questions, this article is for you because when you are caring for a tree, you are tasked with caring for the above-ground portion and the below-ground portion.
If I’m helping a community member with a tree issue, nine times out of ten, it is related to the above-ground portion. This is understandable; it is the portion of the tree that we can most easily see and access. But what lies below the soil surface is essential for tree health and longevity.
The function of roots
The function of tree roots is multifaceted. They are an anchor to the above-ground portion of the tree, helping to keep it upright against its own weight and the exterior forces of weather. Roots absorb essential nutrients and water from the soil and transport to other plant parts for use. During the winter months, roots store carbohydrates produced by the previous year’s leaves to use as new spring foliage emerges.
