The answer to 'why is my grass dying plants' is that there are several common causes for grass dying or plants not thriving, including improper watering, poor soil quality, pest infestations, and disease. Symptoms may include discoloration, wilting, thinning, or bare patches in the lawn.
To troubleshoot the issue, start by checking the soil moisture - the grass may be over or under-watered. Aerate the soil and apply the right fertilizer. Look for signs of pests like grubs or fungal diseases and treat accordingly. If the problem persists, it's best to consult a professional landscaper who can diagnose the root cause and recommend the best solution.