The answer to 'drainage system not growing' is that a lack of proper drainage can prevent grass and other plants from thriving in a landscaped area. Common causes include poor soil quality, clogged drains, or improper grading that leads to standing water. Symptoms may include waterlogged soil, patchy or stunted grass growth, and the presence of moss or algae.
To address a drainage issue, start by inspecting the system for any blockages or damage. Clear out any debris from gutters, downspouts, and drainage pipes. You may also need to adjust the grading around the affected area to ensure water flows away from the house. In some cases, installing additional drainage features like French drains or dry wells may be necessary. If the problem persists or you're unsure of the cause, it's best to consult a professional landscaper who can assess the issue and recommend the appropriate solution.