This is a really cool way to grow your garden vegetables, especially if you live where there is not a lot of rain fall. You can have yours above ground or use the hybrid method and have it underground. This is really nice for small space gardening. It is not going to work for commercial farmers why plant acres of plants but for folks that want to have a small garden in the back yard or even a side yard or down an edge of the drive way. The above ground system is actually made with a gutter set into a wooden frame to keep it upright.