There was actually a bush planted where the green pot now sits, but we ripped that out shortly after we moved in since it stuck halfway out into the walkway and groped you with its scratchy branches every time you walked by. Ever since then the spot has been occupied by dirt and weeds.
We decided that decorative rocks were the best solution. No water required and they would keep away the weeds. We chose marble chips because they were inexpensive and the white color went well with the limestone on our house.
We dug out a couple inches of dirt then leveled the spot with sand.
30 minutes and $15 dollars later...
I can't believe we lived so long with this eyesore...I didn't realize how bad it looked until the rocks were down. Quite a contrast. I hope this inspires you to complete that little project you've been putting off for so long!