Will Tree Roots Damage My Water Pipes, Foundation, Sidewalks or Driveways?

Nature Hills Nursery | February 14, 2026

Here at Nature Hills, we get asked a lot of questions about planting trees. People want to know if tree roots will grow into and damage pipes, water and sewer lines.

Sure, it’s true that some plants have aggressive roots and some trees are very surface-rooted. Certain soil conditions may cause a tree to adapt their typical style.

And of course, everyone's pipes are different. An old, cracked Orangeburg or clay pipe certainly tells a different story than new PVC pipe and steel pipes.

Tree Root Growth 101

All roots are there to find food, oxygen, and water, and to anchor the plant in the soil Typically, most tree roots can grow in any direction in a quest to find food and water.

That's right, roots don't grow in perfect concentric circles. They also don't grow in a uniform pattern out away from the trunk.

Especially as the tree ages, active feeding roots can grow well beyond the spread of the branches. This is called the dripline.

To learn more, researchers have very carefully excavated the roots of many kinds of trees. Their goal was to learn exactly what is going on under the ground.

We now know that trees may send down a handful of deep roots. These deep roots grow to the water table as a precaution against drought. They also act as an anchor to keep the plant upright.

However, the researchers found that the majority of the roots are located in the top 18-24 inches of soil! They also found that the roots may grow 2 or 3 times as far away as the dripline.

"Will Tree Roots Ruin My Sewer Pipes?”

When a water pipe becomes damaged from age or an impact, it slowly leaks water. You can bet that tree roots will quickly jump on that water source.

Aging or damaged pipes are a perfect source of water and oxygen for any plant. Roots will quickly grow inside of weak pipes and can plug them up with a thick mass of roots.

Did the tree cause that pipe to fail? Possibly, if it was an older pipe and a tree root expanded enough to push that pipe a bit out of the way.

But there are many other reasons a pipe can fail. It may not always be the fault of the tree.

Bottom line, a damaged, seeping pipe does create an opportunity for roots to enter. You might notice slow drains, gurgling sounds and unpleasant odors as indicators that you have a plumbing issue.

Seek help from a trusted plumbing professional if you suspect tree roots in your pipes.

If you have mature trees on your property, it's also wise to think ahead. Flush a regular course of root preventative that you find at the hardware store. Follow directions on the label.

"Can The Roots Of A Tree Damage The Foundation To My House?"

Root intrusion where trees are the main cause of mechanical damage to a foundation is rare. They will, however, opportunistically seek water if there is a drainage problem near your foundation.

If you have a huge tree planted near your foundation, please know that freezing and thawing or periods of rain and drought can cause some expansion and shrinkage of the roots. Mitigate your risk with professional advice from an arborist in your area.

Please, don't plant huge trees right up against your home. Remember, roots of both trees and shrubs grow toward food and water.

Pull up tree "volunteers" as soon as you notice them around your home. Plan your landscape carefully to maximize your enjoyment of beautiful trees.

Frank Talk About Tree Roots and Septic Drainage Fields

Now you know that tree roots grow to find water and nutrients. As you might imagine, septic drainage fields are a prime resource for both.

Trees on your property will likely grow many roots in the direction of your well or septic tank. You can try chemical treatments, geotextile or metal root barriers, replacing trees every 10 years or so, and limiting selections to slow-growing trees with smaller root balls.

But honestly, none of those are ideal solutions for your critical septic plumbing system.

Rather than trying to prevent root growth, we have a different idea. In the long run, it's a better choice to make different plant selections in this situation.

So what is a better type of plant to grow on septic mounds? Try shallow-rooted plants, like Perennials and Ornamental Grasses. These are excellent plants that are much less of a worry.

What Kind Of Soil Do You Have?

Extremely hard or compacted soils make it difficult for roots to grow down into the soil. In those circumstances, the planting site can cause roots to stay closer to the surface.

If you plant a tree that prefers well-drained soil in a site that is too wet, it will grow roots closer to the surface in a search for oxygen. So even though this tree may not normally display shallow roots, it will adapt to overcome environmental challenges.

We recommend looking at the Plant Highlights for soil and moisture requirements. They are found on every product page of our website.

Improve drainage and soil condition by bringing in more soil in a mound. Amend with compost, and top-dress with a thick layer of wood chip mulch. The mulch will break down over time to improve soil condition.

In these circumstances, you'll want to be sure to use a full bag of Nature Hills Root Booster to support the needs of your new tree. Follow planting directions on the label.

Call Before You Dig!

Do you know where your water lines run on your property? Call 811 to request utilities flag their buried lines and underground pipes several days before you plan to dig. Start here: https://call811.com/Start-Here/Homeowners

Give These Tree Species More Room

Some trees are well-known for having "aggressive" root systems. These varieties include Silver Maples and Willow trees.

Remember that old commercial? It's not nice to fool Mother Nature.

Why not give these gorgeous, large trees room to spread their root systems out? Plant them well away from any structure where they can grow. Allow them the space they need to do their thing without concern.

It's not a good idea to use these large trees close to your home. As they mature, there can be too much risk of further damage to at-risk cement, pipes, walls and septic drainage fields.

All of these trees make great additions to shelterbelts and windbreaks. Weeping Willows look fantastic along the edge of a property or pond as a "destination" focal point.

Don't worry! There really is a place for every plant.

Smaller Trees To Consider

Near your foundation, try some of the smaller trees we offer. Add a lovely Japanese Maple, Crape Myrtle, Redbud, Little Gem Magnolia, White Fringe Tree or Flowering Dogwood tree.

A fun idea is to use semi-dwarf fruiting trees as part of a modern edible landscape. Or use tree-form shrubs like Lilacs and Hydrangeas that have been grafted to a standard. Filter by size on our site to see our full list of trees that stay small.

For other suggestions suited to your area, try your local Ag Extension office. It's free, and staffed with helpful master gardeners who know the trees that work best in your geographic conditions.

Enjoy trees!

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Frequently Asked Questions

Can crepe myrtle roots damage underground water pipes or sewer lines?

Crepe myrtle roots are generally considered non-aggressive and are far less likely to cause pipe damage than large shade trees, but no tree is entirely without risk if aging or cracked pipes are already present. Like all trees, crepe myrtles send the majority of their roots into the top 18 to 24 inches of soil and can extend two to three times beyond the branch canopy in search of water and nutrients. A leaking or damaged pipe of any kind can attract nearby roots, so plant crepe myrtles at least 10 feet away from known sewer or water lines as a precaution. To stay ahead of potential issues, flush a root-preventative treatment through your drains annually and consult a plumber if you notice slow drains, gurgling, or unusual odors.

Can tree roots damage or break water lines over time?

Tree roots can absolutely damage water lines over time, particularly older clay or Orangeburg pipes that develop cracks and leaks, which then attract roots seeking moisture and oxygen. Most tree roots grow in the top 18 to 24 inches of soil and can extend two to three times beyond the branch dripline, putting them well within range of buried utilities. Roots do not cause problems with sound, intact pipes, but a seeping or aging pipe becomes an irresistible water source that roots will exploit quickly. To stay ahead of the problem, flush a root-preventative product through your lines on a regular schedule and consult a licensed plumber if you notice slow drains, gurgling sounds, or odors near mature trees.

Do palm tree roots pose a risk to nearby pipes or underground utilities?

Palm tree roots are generally less aggressive than those of many broadleaf trees, but they can still spread 2 to 3 times beyond the canopy and will opportunistically grow into any cracked or leaking pipe in search of water and oxygen. Like all trees, palms concentrate most of their root activity in the top 18 to 24 inches of soil, which puts underground utilities in their path. To minimize risk, plant palms at least 10 to 15 feet away from known utility lines and sewer pipes, and use a periodic root-preventative flush to discourage roots from seeking out your plumbing. If you notice slow drains, gurgling sounds, or unusual odors near mature palms, consult a licensed plumber promptly.

Will hydrangea roots ever grow deep enough to damage pipes or a foundation?

Hydrangea roots are generally shallow and non-aggressive, staying within the top 18 to 24 inches of soil and rarely spreading far beyond the plant's canopy, making them very low risk for pipe or foundation damage. Unlike trees, hydrangeas have fine, fibrous root systems that lack the mass and force to crack or infiltrate intact pipes or concrete. That said, any plant's roots will opportunistically enter an already damaged or leaking pipe, so the real concern is the condition of your existing infrastructure. Keep hydrangeas planted at least 5 feet from known pipe locations and foundation walls, and have older pipes inspected periodically as a general precaution.

Can camellia roots cause damage to pipes, sidewalks, or a home foundation?

Camellias are generally considered low-risk when it comes to root damage, as they are slow-growing shrubs with relatively non-aggressive root systems that stay close to the plant. Unlike large shade trees, camellias typically reach 6 to 12 feet in height and spread, meaning their roots rarely extend far enough or with enough force to threaten foundations, sidewalks, or pipes. That said, no plant is entirely without risk, especially near old or already-compromised clay or Orangeburg pipes that may be seeping moisture and attracting roots. To stay safe, plant camellias at least 5 to 10 feet away from any known utility lines or foundation edges, and use a periodic root barrier or preventative treatment if you are planting near aging infrastructure.

How do tree roots find and grow into water pipes?

Tree roots grow opportunistically in the top 18 to 24 inches of soil, spreading outward two to three times beyond the tree's dripline in search of water, oxygen, and nutrients. When aging or damaged pipes begin to seep, that moisture creates an irresistible draw, and roots will quickly infiltrate the weakest points, eventually forming thick masses that can block flow entirely. If you have mature trees on your property, flush a root-preventative treatment through your pipes regularly and watch for warning signs like slow drains, gurgling sounds, or unpleasant odors, then call a plumbing professional if any of these symptoms appear.

Can rose bush roots damage underground water pipes?

Rose bushes have relatively shallow, non-aggressive root systems that typically extend only 18 to 24 inches deep, making them far less of a concern for underground pipes than large trees. That said, if a water pipe is already damaged, cracked, or leaking, even rose roots can follow that moisture source and cause blockages over time. To play it safe, plant roses at least 3 to 5 feet away from known utility lines, and if you notice slow drains or gurgling sounds near established plantings, contact a plumbing professional to inspect your pipes.

Can Rose of Sharon roots damage a home foundation or nearby hardscaping?

Rose of Sharon (Hibiscus syriacus) is a relatively well-behaved shrub with a non-aggressive root system, making it a low-risk choice near foundations and hardscaping compared to large trees. Its roots are typically shallow and fibrous, staying close to the plant and rarely causing structural damage when given adequate space. To be safe, plant Rose of Sharon at least 3 to 5 feet from foundations, sidewalks, and driveways to give roots room to spread without creating any pressure over time. Water regularly during establishment to encourage roots to grow downward rather than spreading laterally in search of moisture.

Can tree roots grow through or into PVC pipes?

Healthy, intact PVC pipes are highly resistant to tree root intrusion because roots are opportunistic and seek out existing moisture and oxygen sources rather than forcing their way through solid material. However, if a PVC pipe develops even a small crack or loose joint, nearby roots will detect the leaking water and can work their way inside, eventually causing a serious blockage. To protect your pipes, plant trees at a safe distance from sewer and water lines, and flush a root-preventative product through your drains on a regular schedule to discourage root growth near your plumbing.

Which types of trees are most likely to cause foundation damage from root growth?

Trees with aggressive, water-seeking root systems pose the greatest risk to foundations, including willows, silver maples, poplars, elms, and American sweetgum. These species are known for fast-growing, wide-spreading roots that can extend 2 to 3 times beyond the dripline and actively seek out moisture, including the slight seepage that can occur around older foundations. As a general rule, plant any large-maturing tree at least as far from your foundation as its expected mature height, and for high-risk species like willows or poplars, double that distance to be safe. If you already have one of these trees growing near your home, consult an arborist about root barriers and have your foundation and plumbing inspected regularly.