My mother has rows of privet hedge that are quite old. The hedge is serving a purpose in that it is planted in areas at the top of sloping land and we believe it serves to prevent the erosion of the slope, and it also is along boundaries of her property. The areas with hedge, if added together, is in excess of 150 feet. But the hedge is probably 40 years old and is now spindly and thin.
Question: Is there a way to trim, or prune and/or fertilize the hedge to make it thick and beautiful?
Question: If we have to remove the hedge because it is a lost cause, what plants would you recommend for replacment? Because of the amount of hedge we would have to replace we also need something that would be affordable. Are there plantings other than hedge or trees that would serve to prevent the erosion of the slopes, and should we consider those?