Deep-rooted plants need more room and require a taller container. Indoor plant containers are made of many materials, but clay and plastic are most widely used. Untreated clay pots allow moisture to evaporate from the soil through the sides of the container. This promotes soil aeration and root growth. On the other hand, the soil dries faster and plants need watering more often in porous clay pots than in most other types of containers.
Plastic pots retain moisture longer.
It's important, therefore, to ensure good drainage and to avoid overwatering. Plastic pots are also easier to clean, lighter in weight, and generally less expensive that clay containers. Perhaps the most important characteristic of an indoor plant container is that it have one or more drainage holes. This permits rapid escape or drainage water, leaching of excess salts, and re-entry of air into larger pore spaces in the soil. Plants grown in containers that have no drainage holes are easily injured or killed by overwatering.