The answer to 'retaining wall installation not growing' is that the most common causes are improper soil preparation, insufficient drainage, or issues with the wall's structural integrity. Symptoms can include visible cracks, leaning, or lack of vegetation growth. Solutions may involve rebuilding the wall, improving drainage, or amending the soil to promote plant growth.
Retaining wall installation is generally best left to professional landscapers, as it requires specialized knowledge and equipment. DIY attempts can lead to further issues down the line. If you notice any problems with your retaining wall, it's recommended to consult a local landscaping expert to evaluate the situation and provide the appropriate remedies.