The answer to 'lawn care not growing' is that there are several common causes, including improper mowing, lack of water, poor soil quality, and pest or disease issues. Symptoms may include thin, patchy grass, yellowing blades, and slow growth.
To troubleshoot, start by checking your mowing height and frequency - the grass should be cut to 3-4 inches and not removed more than 1/3 of the blade at a time. Make sure the lawn is getting 1-2 inches of water per week, either from rainfall or irrigation. Test your soil to see if it needs amendments like lime or fertilizer. Inspect for signs of pests or disease and treat accordingly.