The answer to 'tree overgrown' is that a tree may become overgrown due to a lack of proper pruning and maintenance. Symptoms of an overgrown tree include dense, crowded branches, excessive shading, and an overall unkempt appearance. Solutions can range from selective pruning to complete removal, depending on the severity of the issue.
For minor overgrowth, homeowners can often handle light pruning and trimming themselves. However, for larger, more complex trees or those with significant overgrowth, it's best to hire a professional arborist or landscaping company. They have the expertise, equipment, and safety training to properly assess the tree and perform the necessary work without causing further damage.