Should 30-year old soil be renewed to plant a new hedge?
A cedar hedge has thrived over the last 30 years on the edge of a terrace raised with soil (approx. 50 cm high). It wasn't cut in the last four years. In the end, it died. Now, the question is whether a new hedge, such as another cedar, could be planted there, or is the soil depleted after 30 years? As I said, it's not level earth, rather slightly loose soil on a slope.