if its in a garden then yea put worms in, but if your talking about putting worms in a pot it wont work and if it does not for long, the wroms would only live for a 2 weeks to a month tops, they wont have anything to eat, theirs not enough room for them in pots, not even 5 gallons pots, and they need food!!! I cant stress that enough, they probably wont poop much from lack of food, poop is worm castings, and this is what you want, you can start a small worm bin and arvest their castigs that works real well, and its cheap and easy to do, theirs a pretty good section on worm bins in the grow FAWs, the grow faqs are a nice place!