The answer to 'irrigation system not growing' is that there could be several common causes, such as clogged or damaged sprinkler heads, issues with the water supply, or problems with the irrigation controller. Symptoms may include uneven or patchy grass growth, dry spots, or water pooling in certain areas.
To troubleshoot the issue, you can start by inspecting the sprinkler heads for any clogs or damage, and cleaning or replacing them as needed. Check the water pressure and flow to ensure the system is getting adequate water supply. Also, review the programming on the irrigation controller to make sure it's properly configured and running on the right schedule.