Choose a wild & crazy plant for this head planter. Or something green & sedate. Most all plants grow better in a container with a drainage hole - these have one. They also have a plastic plug so the planter can hold moisture if you wish. If you nestle a small potted plant in the planter opening, either remove the plug or make sure there’s no puddle of water in the bottom after watering. Soggy bottoms = rotten roots!