The answer to 'why is my shrub dying plants' is that there are several common causes for a shrub dying, including overwatering, underwatering, disease, pests, or improper planting. Symptoms may include wilting, discolored leaves, or stunted growth. To troubleshoot, first check the soil moisture and adjust your watering schedule as needed. Look for signs of disease or pest infestations and treat accordingly. Ensure the shrub is planted in the right location with suitable soil and light conditions.
If the issue persists or you're unsure of the cause, it's best to consult a professional landscaper or horticulturist. They can diagnose the problem and recommend the appropriate treatment or replacement of the shrub.