Thank you, Bonnie. There had just been some remodeling done, resulting in too much broken concrete to have to drag uphill to the dumpster. The front raised planter had too severe a slope to it, so I used much of the concrete to build "rubble walls" to terrace the slope into plantable beds. Torch of Liberty was planted closest to the front so I could continue easily pollinating it with the various pollens I wanted to use on it, hence the wall behind it. It was nice it also made it easier to depict the whole plant, something not easily done without something to help differentiate one plant from the next.