The answer to 'why is my tree dying plants' is that there are several common causes for a tree to be dying or affecting surrounding plants. Some of the most frequent issues include disease, pests, improper planting or care, drought, and root damage.
Signs that a tree may be dying or affecting nearby plants include wilting or discolored leaves, sparse foliage, dieback of branches, and stunted growth in surrounding plants. The solutions can vary depending on the underlying cause, but may involve pruning, treating for pests or disease, improving soil conditions, or in severe cases, removing and replacing the tree. If you're unsure of the cause, it's best to consult a professional arborist or landscaper who can properly diagnose and recommend the appropriate treatment.