The answer to 'retaining wall installation not growing' is that there are several common causes for a retaining wall not growing vegetation as expected. This could be due to improper soil preparation, lack of adequate drainage, or the use of unsuitable plant species for the wall's conditions.
Symptoms may include sparse, patchy growth, wilting plants, or even bare spots on the wall. To address this, homeowners should first inspect the wall for any structural issues that could be impacting plant growth. They should also ensure proper soil composition, drainage, and select plants well-suited to the wall's microclimate and exposure. If the issues persist, it's best to consult a professional landscaper who can diagnose the problem and recommend the appropriate solutions.