The depth of tree roots depends on the species. Trees like oaks and maples can have root systems that grow down 20 feet or more. However, trees that grow in shallow soils will have roots that go only a few feet down. Research how your tree species grows in your climate area to estimate root depth.

Trees should be pruned every two to five years, depending on its age and type. Young trees should be inspected and pruned every two to three years. Mature trees should be inspected and trimmed every three to five years, and fruit trees should be pruned annually with a careful eye on seasonal growth. Evergreens typically don’t need pruning, unless branches or limbs are damaged, diseased, or harboring pests.

Planting trees far enough from your foundation will protect your home from root damage, but if you’re dealing with existing trees, you can still guard against roots. Root barriers form a physical boundary that will prevent roots from encroaching on your foundation and can help save you from expensive foundation repair costs.

There are several signs that may indicate a tree needs to be cut down. These include visible damage to the trunk or branches, a hollow trunk, extensive storm damage, or a significant lean to one side. Other warning signs are pest infestations or the tree growing too close to a house, power lines, or other structures. It is best to hire a professional arborist to inspect the tree, as they can determine if it can be saved or if removal is necessary.