Why do flower pots have pierced holes on the bottom?

Hello,





What is the purpose of the pierced holes on the bottom of the flower pots? What will happen if I close them?

Why do flower pots have pierced holes on the bottom?
To allow excess water to drain out of the pot. Most plants need water, but do not need to sit in water. The drain allows water out. To keep it from pouring out, place a small rock over the hole, it will keep some water in which will be good. Also a piece of terra cota from another broken pot would work. Just don't stop it up completly. Good luck.
Reply:I agree with last answer.


Also, in my experience I have used a coffee filter, for the whole in pot was rather large an I didn't want the dirt to fall out as I was re potting.


Have fun exploring.
Reply:The excess water has to come out. Otherwise the plant will start rotting soon, don't you think? Why does it bother you? Just place a dish under it .....
Reply:For drainage...if you close them the soil will become waterlogged and the plant's roots will rot