From Weekend Gardner
You can use these as you would any pots to grow seedlings for a flower or vegetable garden, or for cuttings for plant propagation.
When it's time to plant the seedlings or cuttings, simply place the entire pot in the ground. The newspaper will break down in a couple of months and become part of the soil.
Note: Make sure the edges of the pot are completely buried. If exposed to the air, any free edges can wick away and evaporate significant amounts of moisture from the young plant.
You can make these pots any size you want, we're just showing you the basic idea to follow; you can make alterations as you see fit.
You will need:
* Black and white newspaper. Don't use colored sheets because they may contain toxins.
* A tube, or an empty drinking bottle, or a drinking glass, anything that is about 3 to 4 inches (7.6 to 10 cm) in diameter. You can also use something smaller like a tomato paste can.