So my sister in law calls me to take a gander at her lawn. The neighbor put down weed and feed earlier in the year...guessing march/april, but her lawn sure doesnt look like it. It is semi green with some yellow in it, but walking across it feels crunchy. We have had plenty of rain here in texas so i do not think it is a dry thing. She also has a sprinkler system that runs every other day at 6 am for 18 minutes...not sure how much that is putting on it. Anyway, what could she put on it to help green it up and make it plush again? I dont do fert so i have no clue and dont want to tell her to put something on it that burns or kills it. Any help would be appreciated.