It's a new system of laying out, planting, and maintaining a productive, attractive garden in any amount of space. Climbing and sprawling crops like cucumbers, pole beans, squash, and tomatoes are grown vertically to save space.
Productivity is similar to that of wide row gardens.
Limits are set for the garden ahead of time, and your gardening work is reduced to one square foot at a time. Believe me, weeding goes a lot easier when you don't have to think about the entire job. There's also a nerdish graph paper quality to the whole setup. I have a weakness for graph paper. Tomatoes and cucumbers are grown on a U-frame trellis.