Can Tree Roots Keep Growing After the Tree Is Cut Down?
You had a tree removed and you figured that was the end of it. The tree is gone, the yard looks better, and the problem is solved. Then a few weeks later you notice a crack forming in your driveway that wasn’t there before. Or little sprouts are popping up out of the ground where the tree used to be. Or there’s a soft spot forming in the lawn around the old stump. And now you’re wondering if something is still going on underground even though the tree itself is long gone.
It is. Here’s what’s actually happening and why the stump is the key to stopping it.
What Happens to Tree Roots After a Tree Is Cut Down
When a tree gets cut down the root system does not die immediately. How long the roots stay alive and active depends on the species of tree, the size of the root system, and the condition of the stump. In many cases, especially with oaks, maples, and other hardwoods that are common throughout Wesley Chapel and Pasco County, the roots can stay alive for months after the tree is cut. The stump acts as a food storage unit. The tree spent years storing energy in its root system and that stored energy keeps the roots alive and active long after the trunk is gone.
During that window the roots are still doing what roots do. They are pulling moisture from the soil, expanding into new areas, and responding to the wet and dry cycles that Wesley Chapel gets every year. That means the root system from a tree that was cut down six months ago is potentially still growing, still moving, and still pushing against whatever is in its path.
Why Sprouts Keep Popping Up in Your Yard
One of the most obvious signs that a root system is still alive after a tree removal is new sprouts pushing up through the ground. These are called suckers and they grow directly from the root system. The tree is gone but the roots are still trying to grow a new tree. You can cut the sprouts down but as long as the root system is alive and the stump is in the ground they will keep coming back. Homeowners throughout Wesley Chapel deal with this constantly after tree removals, especially with certain species like cherry laurel, crape myrtle, and elm that are aggressive sprouters.
The only way to stop the sprouting permanently is to remove the food source. Grinding the stump cuts off the energy supply the root system is drawing from and the sprouting stops.
Why Your Driveway or Sidewalk Is Cracking
This is the one that surprises people the most. The tree is gone, the stump is sitting there doing nothing visible, and yet the driveway keeps cracking. What’s happening is that the root system underneath the concrete is still moving. Even roots that have started to die do not disappear overnight. They decay slowly and unevenly, and as they decay the soil around them shifts and settles. That movement translates directly into movement in whatever is sitting on top of the soil, which is your driveway, your sidewalk, your pool deck, or your foundation.
In Wesley Chapel the summer rainy season makes this worse. Heavy rains saturate the soil and the roots absorb moisture and expand. Then the dry season pulls the moisture back out and the roots contract. That cycle of expansion and contraction keeps the soil moving and the concrete cracking. A stump that appears to be doing nothing above ground is causing that movement below ground every single day it stays in place.
If you want to understand the full scope of what a stump and root system can do to your foundation and driveway, read this.
Soft Spots in the Lawn
Soft spots forming in the ground around an old stump are a sign that the root system is starting to decay. As the roots break down they leave voids in the soil. Those voids cause the ground above them to sink slightly, creating soft or spongy areas in your lawn. In Wesley Chapel’s sandy soil those voids can form faster than you’d expect. Besides being a tripping hazard, those soft spots can collapse under the weight of a lawn mower or a person and cause ankle injuries.
The soft spots will keep forming as long as the root system continues to decay in place. Grinding the stump speeds up the decay process by removing the central food source and allowing the remaining roots to break down more quickly and evenly.
Why You Can’t Grow Grass Where the Tree Was
After a tree removal a lot of Wesley Chapel homeowners try to fill in the bare spot and get grass growing again, only to find that nothing takes. The soil in that area is compacted from years of root growth, depleted of nutrients the tree consumed, and often still full of surface roots just below the soil line. Grass seed and sod both struggle to establish in those conditions.
Grinding the stump removes the woody material above and below the surface and the wood chip mulch it creates actually helps restore organic matter to the soil as it breaks down. Once the stump is ground and the area is properly filled and graded, grass has a much better chance of establishing. Skipping the stump grinding and trying to grow grass over an intact root system is a frustrating and usually unsuccessful exercise.
The Fix Is the Same Regardless of How Long the Stump Has Been There
Whether the stump was left behind last month or three years ago the answer is the same. Grind it. A fresh stump still has an active root system that needs to be shut down. An old stump has a decaying root system that is causing soil voids and movement. Both problems stop when the stump is ground below the soil line.
For more on what a stump costs to remove in Wesley Chapel and what factors affect the price, read this. And if you’re dealing with a stump that’s been sitting long enough to attract insects, this article covers what to look for.
Stump Grinding Wesley Chapel serves all of Pasco County. Call us for a free estimate and we will come out, assess the stump and root system, and get it out of the ground for good.