Sorry for bumping. Trying to get some ideas for some flower bed / vegetable garden edging, and saw some people around the neighbourhood had used some large rocks to form a border. Does anybody know what kind of base preparation is needed for this? Can I just drop the rocks in place to keep mulch and soil in place or is more involved than this? I just want it to be stable, in case they get run into with the lawnmower, or kids walk on them they don't wobble.
The concept would be something similar to this:
