Trees, shrubs, bushes, and other vegetation can be the subject of neighbor disputes. If you are not able to resolve an issue by talking to your neighbor, the law may provide some relief.

For example, if your neighbor’s tree extends onto your property and blocks your view, blocks sunlight, sheds pollen, acorns, leaves, or other foliage—or otherwise interferes with your use and enjoyment of your property—it may constitute a nuisance and you may be able to get help (relief) from the civil court system.

In some states you may have the right to trim a tree to the property line or boundary. But in some states an overhanging tree may have acquired the right to be there through an easement by prescription or prescriptive easement, for example.

But if a tree is on or near the property line and the tree and its root structure extends onto both properties, you generally may not remove it or kill it without your neighbor’s consent. And some municipalities place restrictions on the removal of trees.

Trees with dead or decaying branches can also create liability for a landowner if they fall and cause personal injuries to guests, neighbors, or members of the public—or cause property damage to a neighboring property or motor vehicle, for example.

Laws regarding trees, shrubs, bushes, and other vegetation on neighboring properties may vary from state to state and may be included in a state’s statutes or in its court opinions—also known as common law or case law. And there may be municipal ordinances (laws enacted by local governments in cities and towns) that govern these issues.

In New Hampshire, disputes over trees and vegetation between neighbors are governed by state statutes and common law. If a neighbor's tree branches extend onto your property, you generally have the right to trim them up to the property line. However, you cannot cut down or damage the tree itself if it stands on the boundary line without the neighbor's consent. This is because such trees are considered joint property. New Hampshire law does not recognize a prescriptive easement for tree encroachments, so overhanging trees do not acquire the right to be there over time. If a tree poses a nuisance by blocking views or sunlight, or by shedding debris, a civil court may provide relief. Municipal ordinances may also regulate tree removal and maintenance. Regarding liability, a landowner may be responsible if a tree's dead or decaying branches fall and cause injury or property damage. It's important to check local ordinances as they can impose additional restrictions or requirements on tree maintenance and removal.