The answer to 'shrub overgrown' is that common causes include lack of regular pruning, overcrowding, and environmental factors like drought or pests. Symptoms include the shrub becoming unruly, blocking walkways or views, and struggling to thrive. Solutions can include selective pruning, transplanting, or complete replacement, depending on the severity of the issue.
For minor overgrowth, homeowners can often prune the shrub themselves using proper techniques. However, for severe cases or shrubs that require extensive work, it's best to call in a professional landscaper who can assess the situation and recommend the best course of action.