The answer to 'why is my tree' is that there could be several common causes, including disease, pests, environmental stress, or improper care. Some common symptoms may include wilting, discolored leaves, dieback, or structural issues. The solution will depend on the specific problem, but it's important to diagnose and address the issue promptly to prevent further damage or decline.
If you're unsure of the cause or the best course of action, it's generally recommended to consult with a certified arborist or professional landscaper. They can properly assess the tree, identify the problem, and provide the most effective treatment or maintenance recommendations. In some cases, DIY solutions may be appropriate, but it's always better to err on the side of caution when dealing with the health and safety of a tree.