Creating a Landscape Container out of Concrete [Great for Penjing or bonsai forests] 

Most bonsai pots are fairly traditional in shape and size. So what to do when you have the need for a large landscape container for a forest or penjin planting, and perhaps even a cliff or rock? Make one yourself of course!
There are many approaches to doing this. Some will use composite plastics or thermal plastics and fiberglass hulls. In this video I will use a concrete base over a steel frame.
Main ingredient is outdoor tile glue, and outdoor Grout with an additive to make it water resistant (normally used in concrete/cement for basement construction).
Step by step explanation on how I do this.