Dateline: 9 February 2017
After yesterday's post about using recycled billboard plastic for making a minibed-on-plastic garden, I found an article about someone who used a recycled billboard tarp to make the bar code garden pictured above.
The bar code lines are cut-out sections of plastic. You can learn more and see the mature garden at This Link.
This idea is, of course, a clever novelty. It's not a gardening idea I am recommending. :-)