The answer to 'flower bed dying plants' is that there can be several common causes, including overwatering, underwatering, pests, disease, or nutrient deficiencies. Symptoms may include wilting, yellowing, or browning leaves, stunted growth, and plant death. Solutions can involve adjusting watering, treating pests or disease, or amending the soil with nutrients.
For simple issues, homeowners can often diagnose and fix the problem themselves. However, for more complex or persistent problems, it's best to consult a professional landscaper or horticulturist who can properly identify the issue and provide the right treatment.