If I put a spider plant in the pot on the right, I may never get it out.

Clay pots have been around for a very long time. It is impossible to know for how long exactly. It is logical to say that they have been around long enough to evolve into the perfect shape for their function. Although the dimensions and proportions are variable, the basic design characteristics of the simplest and best engineered clay pots can not be improved on.

Clay pots are circular from above and below for a few reasons. Such a shape is easily formed on a potters’ wheel. It is more structurally sound than a form with flat sides and more corners. The space within is evenly distributed around the vertical center, without more remote corners. Although roots will circle within, there are not so many corners for them to congregate in.

Drainage holes…