Biodegradable flower pots have the same benefits as regular plastic pots. They break down naturally. To dispose of them, cut up the pot and add the pieces to the compost or place them in the bottom of the planting hole. It will take up years for the pieces to break down.
Another advantage is the plant, along with the fibre pot, can go straight into the ground. This means no root disturbance, no transplant shock and no down time while roots settle in. This is ideal for fussy plants such as coriander, which tend to bolt to seed if their roots are disturbed.
(The picture shows that how biodegradable pots made and dispose, it is part of the natural recycle.)