The answer to 'hedge bare spots' is that there are several common causes, including disease, pests, drought, or improper pruning. Symptoms may include thinning foliage, dead or dying branches, and unsightly gaps in the hedge. Solutions can range from simple DIY maintenance to professional hedge restoration, depending on the severity of the issue.
For minor bare spots, you may be able to address the problem yourself by fertilizing, watering, and pruning the hedge properly. However, if the bare spots are widespread or the result of a more serious underlying issue, it's best to consult a professional landscaper who can diagnose the problem and recommend the appropriate treatment.