When you have acquired skill at keeping your indoor plants alive and well, they will thrive and increase in size. Inevitably you will have to transfer them into larger. When you come to do this, make sure you select the right pot. They come in a variety of sizes and can be made of clay or plastic in the standard or deep-rimmed shapes.
The clay pot
This is frequently cheaper to buy. The advantage of a clay pot is that, because it is porous, water logging is a little less likely to happen. The clay pot often has a poor shape, however, and may stand badly. It also breaks very easily.
The plastic pot
This is much lighter, and is unlikely to break if it is accidentally dropped. The soil temperature is kept more even and less water is needed because the pot is non-porous. It will stand firmly and have a more attractive appearance. Plastic pots can be obtained in decorative shades. A further advantage, especially of the deep-rimmed type, is that these pots stack well without jamming.
These may be in clay or plastic to match the pots. Not only do they make the pot look more attractive, but they also catch anyfrom the soil inside the pot.
If you decide to use deep-rimmed pots, which are recommended, then the correct soil level is indicated by the bottom of the deep top rim.