As an experiment we placed some leaves from a red maple (Acer rubrum) in the bottom on a small bed of sand. The form was made from screwed together lengths of 2x4 that we cut with a circular saw.
Some care was needed when putting in the first bit of concrete not to mess up the arrangement of the leaves. Once we carefully got the leaves tacked down, we were able to pour more aggressively from the wheel barrow.
After floating the poured concrete we applied a broom finish and cleaned up the edges.
For our project, it was a little too wet when we did the first pass of the finish so the team
decided to see if we could clean it up with a second pass. This made the surface a little rougher, but left us with a better result overall.
After removing the form and flipping it over we could see the leaves. It will be interesting to see what it looks like after the leaves weather away.
You'll have to go back and take a picture after the leaves break down. I'd like to see how it worked out.
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