Common Myths About Tree Roots and How They Really Behave
Tree roots are often misunderstood, leading homeowners to worry about problems that may never happen—or overlook issues that truly matter. Whether you’re concerned about roots damaging your property or want to understand how to better care for your trees, separating fact from fiction is essential.
At JM Tree Service Douglasville, we help homeowners make informed decisions by providing expert insight into how tree roots actually grow, behave, and impact your landscape. Here are some of the most common myths about tree roots—and the truths behind them.
Myth #1: Tree Roots Grow Deep Into the Ground
Many people imagine tree roots plunging straight downward in search of water. But in reality, most tree roots grow in the top 12–24 inches of soil. That’s where oxygen, water, and nutrients are most abundant.
The Truth
Roots spread outward more than downward. In fact, a tree’s root system can extend 2–3 times wider than the canopy. This helps stabilize the tree and maximize nutrient absorption.
Myth #2: All Tree Roots Are Invasive
Some trees—like willows, poplars, and silver maples—are notorious for aggressive roots. But that doesn’t mean every tree poses a threat.
The Truth
Roots grow where conditions are favorable. If a tree is planted in the right location, even species with strong root systems typically won’t cause damage. Problems arise when trees are planted too close to homes, driveways, or sewer lines.
Myth #3: Tree Roots Will Always Break Through Foundations
This is one of the biggest fears homeowners have, but it’s largely unfounded.
The Truth
Roots do not attack solid concrete. Instead, they grow toward moisture-rich soil pockets. If your foundation already has cracks or drainage issues, roots may exploit these weaknesses—but they rarely create the problem themselves.
Keeping foundations sealed and ensuring proper drainage can prevent root-related issues altogether.
Myth #4: Cutting One Large Root Won’t Harm the Tree
Homeowners often cut roots to prevent damage or make way for a project. But removing a large root can have serious consequences.
The Truth
Roots are essential for stability and nutrient transport. Cutting a major root can:
- Reduce a tree’s ability to absorb water
- Make the tree unstable or prone to falling
- Increase the risk of disease entering the root system
Before cutting any root, it’s best to consult a professional arborist.
Myth #5: Tree Roots Only Spread When a Tree Is Growing
Trees may appear to be dormant in winter, but underground activity continues year-round.
The Truth
As long as the soil isn’t frozen, roots can continue to grow and absorb nutrients—even during the colder months. This slow, steady growth helps trees stay healthy through seasonal changes.
Myth #6: Roots Can Be Removed Without Affecting the Tree
Some homeowners think they can “thin out” roots the same way they prune branches.
The Truth
Root systems operate differently. Pruning too many roots can:
- Stress the tree
- Limit its nutrient supply
- Lead to decline or death
Always approach root removal cautiously, and involve a trained arborist when structural roots are affected.
Myth #7: Grass and Trees Compete Too Much to Coexist
While trees and grass do share resources, the idea that they cannot coexist is exaggerated.
The Truth
Trees and lawns can thrive together when properly maintained. Adequate watering, mulching, and soil care reduce competition and support both root systems.
Why Understanding Root Behavior Matters
Knowing how roots really work helps homeowners:
- Plant the right trees in the right places
- Prevent avoidable property damage
- Maintain healthier, longer-lasting trees
- Make informed decisions about root removal or tree trimming
A well-informed approach is safer—and more cost-effective—than reacting to myths or misinformation.
Trust JM Tree Service Douglasville for Expert Root & Tree Care
If you’re unsure whether your tree’s roots are becoming a problem, or if you need safe, professional root or tree maintenance, JM Tree Service Douglasville is here to help.
Our team provides:
- Tree inspections
- Safe root management
- Tree trimming and removal
- Emergency storm services
- Preventive care for long-term tree health
Reach out today for reliable, expert tree care you can trust.
Contact Us:
JM Tree Service Douglasville
Douglasville, Georgia
770-343-4094

