Cutting tree roots can be necessary in some situations, but it should always be done with caution and preferably under the guidance of a certified arborist.
**When it's OK to cut roots:**

Small roots: Cutting small, superficial roots during landscaping or gardening is usually not a significant problem for the tree.
Encroaching roots: Roots growing into sidewalks, driveways, or foundations may need to be cut back. However, it's essential to do this carefully to avoid damaging the tree's structural integrity.
Root pruning for transplanting: Before transplanting a tree, root pruning is done to encourage new root growth within a smaller area, making the transplanting process more successful.

**Risks of cutting tree roots:**

Tree instability: Cutting large structural roots can weaken the tree's support system, making it more susceptible to windthrow or breakage.
Disease entry: Cuts create wounds that can serve as entry points for disease-causing organisms.
Reduced nutrient and water uptake: Cutting roots can limit the tree's ability to absorb water and nutrients from the soil.

Before cutting any significant tree roots, consult with a certified arborist to assess the situation, determine the best course of action, and minimize the risk of damage to the tree.

Do tree roots grow towards water?

While tree roots do grow towards moisture, it's not a simple case of them actively seeking out water sources. Roots grow in all directions, but they grow more rapidly and extensively in areas where they encounter favorable conditions, including moisture.
Roots have specialized cells called 'root hairs' that absorb water and nutrients from the soil. These root hairs are more abundant in moist soil, so roots naturally extend more in those areas. However, roots also need oxygen to survive, so they will not grow into waterlogged soil. The direction of root growth is influenced by a combination of factors, including moisture, oxygen availability, soil nutrients, and the tree's overall health.

How do I stop my neighbor's tree roots from growing into my yard?

Dealing with encroaching tree roots from a neighbor's property can be challenging. Here are some options:

Communication: The first step is to talk to your neighbor and explain the issue. They may be willing to trim the roots or remove the tree if it's causing damage.
Root Pruning: You can cut back the roots at the property line, but it's essential to do this carefully to avoid damaging the tree. Consult with a certified arborist for guidance on proper root pruning techniques.
Root Barrier Installation: Installing a physical barrier, such as a thick plastic sheet or metal edging, can prevent roots from growing into your yard. The barrier should be at least 2 feet deep and extend several feet from the trunk.
Chemical Control (Not Recommended): Chemical root killers are available, but they are generally not recommended due to potential environmental damage and the risk of harming the tree.

It's important to be aware of any local regulations or easements that may affect your options for dealing with encroaching roots. If communication with your neighbor fails to resolve the issue, you may need to seek legal advice.

What is the best way to protect trees during construction?

Protecting trees during construction projects is crucial for preserving their health and preventing damage. Here are some key steps to take:

Tree Protection Zone (TPZ): Establish a designated area around the trees that is off-limits to construction activities. The size of the TPZ depends on the tree's size and species, but generally, it should extend to the drip line (the outermost edge of the tree's canopy).
Root Protection: Avoid digging, trenching, or compacting the soil within the TPZ. If excavation is necessary, use hand digging or air spading to minimize root disturbance.
Trunk Protection: Protect tree trunks from damage by wrapping them with protective barriers, such as burlap or plywood.
Branch Protection: Avoid cutting or damaging branches unless absolutely necessary. If pruning is required, have it done by a certified arborist.
Watering: Ensure trees receive adequate water during construction, especially if the soil has been disturbed or compacted.
Monitoring: Regularly monitor trees for signs of stress or damage during and after construction.

Consulting with a certified arborist during the planning stages of a construction project can help ensure the protection of valuable trees on the site. They can provide expert advice on establishing TPZs, minimizing root disturbance, and mitigating potential impacts on tree health.

Is it OK to cut tree roots?