The answer to 'mulch not growing' is that there are several common causes, including improper mulch application, poor soil conditions, and lack of maintenance. Symptoms may include stunted or discolored plant growth, visible soil erosion, and a general lack of lush, healthy vegetation.
To troubleshoot and resolve the issue, start by ensuring you've applied the mulch correctly - spread it evenly to a depth of 2-4 inches, keeping it a few inches away from plant stems and tree trunks. Check the soil pH and nutrient levels, and amend as needed. Regular replenishment of the mulch layer is also crucial, as it breaks down over time. If the problem persists, it may be time to consult a professional landscaper who can assess the site and provide customized recommendations.