This is my second entry in my series on "Ideas for replacing my rotting-to-pieces raised flower bed. It's from "How to Install a Timber Retaining Wall : Outdoors : Home & Garden Television"
Vertical Succulent Garden by floragrubb: 20 x 20" panels with 45 slanted cells to support planats and soil when mounted vertically. The unit in the picture is made of 6 panels, each $79. Now, if I could only figure out how to make the panels myself..