Convenience, plain and simple. Everything that is shown growing in this pot is also in my gardens proper, but there is something to be said for having a sprig of...at your fingertips. Because I shot this from up above, you may not be able to get an idea of the size of this pot, the reason I did was to label it for you if in order for you to try it yourself. The dimensions are 18" wide and 12"deep. I planted a week ago and have already began eating the outside lettuce leaves. Please support your local farmers and greenhouses. The plants are always better. Give it a try!