How to Cover Exposed Tree Roots in Your Lawn Without Damaging the Tree

If you’ve got roots snaking through your lawn or poking above the soil, you’re not alone. This is one of the most common landscape issues we help homeowners solve at Landscaping by J Michael. Exposed tree roots don’t just ruin the look of your yard. They can also create hazards when mowing, increase the risk of tripping, and even jeopardize the tree’s health if they’re covered improperly.

We’ve seen it all across South Shore: maple roots lifting sidewalks, birch trees sending runners through gardens, and homeowners unknowingly burying roots under soil or gravel only to watch their tree decline months later. That’s why this guide is here: to help you understand why roots become exposed, what to avoid, and exactly how to cover them safely.

Done right, you can restore your lawn’s appearance while also protecting your tree’s health. Let’s walk through how. And if you’re still preparing for new plantings, check out our complete guide on the correct way to plant a tree in South Shore for foundational best practices.

Why Are Tree Roots Exposed in the First Place?

Tree roots don’t just show up on the surface to be annoying. They usually respond to their environment. At Landscaping by J Michael, we often explain to South Shore homeowners that root exposure is natural for many tree species and often tied to shallow soil, erosion, or compaction.

Some trees like maples, birches, and beeches naturally grow shallow root systems. Combine that with years of mowing, foot traffic, or heavy rain, and it’s no surprise those roots start surfacing. Erosion can wash away topsoil while compacted soil limits the oxygen and water trees need underground, pushing roots closer to the surface in search of what they need.

It’s important to understand the “why” before jumping into the fix. Otherwise, you might end up covering the roots in a way that looks good temporarily but harms your tree long-term.

Risks of Leaving Tree Roots Exposed

Ignoring exposed roots might seem harmless, but it can lead to serious long-term consequences for both your tree and your lawn. At Landscaping by J Michael, we’ve seen roots become damaged by routine lawn care, compacted by foot traffic, or left to dry out from constant sun exposure.

The most obvious issue is safety. Roots can become tripping hazards for kids, pets, and anyone walking across the yard. They’re also vulnerable to lawn mower blades and string trimmers, which can scar the bark and weaken the tree over time.

Exposed roots are more likely to dry out and crack, making the tree less stable and more susceptible to pests and disease. Over time, this stress can stunt growth or even cause the tree to decline entirely.

Leaving roots exposed also creates bare spots in your lawn where grass struggles to grow. If you’re tired of patchy turf and dodging roots with your mower, now is the time to fix it the right way, using methods that protect both your lawn and your tree.

What Not to Do When Covering Exposed Tree Roots

Before you grab a shovel or a bag of soil, it’s important to know what not to do. At Landscaping by J Michael, we’ve seen well-meaning homeowners accidentally harm their trees by using the wrong materials or applying too much cover too quickly.

Avoid Piling Soil Over Roots

Covering tree roots with extra topsoil might seem like a simple fix, but this can suffocate the roots. Trees need oxygen to survive, and piling soil over exposed roots can cut off airflow, leading to decay or root rot over time.

Don’t Lay Sod or Seed Directly on Top

Trying to grow grass over exposed roots rarely works. Sod or seed often fails to take root because of competition with the tree’s roots and inconsistent moisture. Even if it grows temporarily, it usually dies off, wasting your effort and money in the process.

Skip Hard Surfaces Like Gravel or Concrete

Adding decorative gravel or pavers over tree roots may look neat, but these materials can compact the soil and severely limit the oxygen and water roots need. Over time, this stress can cause significant damage to your tree.

When in doubt, the safest approach is to use breathable, organic materials that protect the roots while still allowing water and air to pass through. That’s what we’ll cover next.

Best Materials to Use to Cover Tree Roots Safely

Now that you know what to avoid, let’s talk about what actually works. The best materials for covering exposed tree roots are those that protect the root system while still allowing water, oxygen, and nutrients to flow through.

Organic Mulch

Our top recommendation at Landscaping by J Michael is organic mulch. Shredded bark, wood chips, or pine straw not only help insulate the roots but also retain moisture and suppress weeds. Apply 2 to 3 inches of mulch around the roots, keeping a few inches of space around the base of the trunk to prevent rot.

Groundcover Plants

If you’re looking for a more decorative solution, try shade-tolerant groundcovers like creeping Jenny, ajuga, or pachysandra. These plants provide root coverage without suffocating the tree, and they add color and texture to your landscape.

Decorative Stone (Used Carefully)

In some cases, small decorative stones or river rocks can be used sparingly if paired with a breathable fabric underneath. This method can create a clean look while protecting roots from foot traffic. Just make sure the layer isn’t too thick and doesn’t trap heat or compact the soil too much.

Using the right materials makes a big difference. You’ll preserve tree health, improve the appearance of your lawn, and reduce long-term maintenance, all while keeping your tree safe and thriving.

Step-by-Step Guide to Covering Tree Roots the Right Way

Ready to take action? Here’s how we recommend doing it the LJM way: safe, simple, and effective for South Shore homeowners.

1. Clear the Area

Remove leaves, grass, weeds, and any debris around the exposed roots. This gives you a clean working surface and helps the materials you add stay in place.

2. Assess the Root Spread

Take note of how far the roots extend and plan to cover at least that area. Avoid disturbing or cutting any roots in the process.

3. Choose Your Material

Use mulch, shade-friendly groundcovers, or breathable stone setups as outlined above. Avoid topsoil, sod, or anything that can suffocate the roots.

4. Apply Gently and Evenly

Spread mulch or cover materials 2 to 3 inches deep across the exposed root zone. Be sure to leave a few inches of space around the trunk. Avoid volcano mulching, which piles mulch against the bark and can cause rot or pest issues.

5. Monitor and Maintain

Check your cover every few months. Refresh mulch once or twice a year and keep plantings trimmed back from the trunk. Watch for any signs of stress in the tree, such as wilting or yellowing leaves.

With the right technique and materials, you’ll protect your tree, enhance your curb appeal, and avoid future lawn care headaches. For additional guidance, read our full blog on how often to water new trees to ensure you’re supporting healthy root growth after covering them.

Long-Term Tips for Lawn and Tree Health

Covering exposed roots is just the beginning. Maintaining a healthy balance between your lawn and your trees over time requires smart choices in how you mow, mulch, and landscape.

Frequently Asked Questions (FAQ)

Let us help you fix those exposed roots the right way — with care, experience, and results that last.