I'm finding out about how to get rid of a terrible invasion of mint plants. I thought it was a little funny that you said there were a few methods that didn't require harmful chemicals, then you said to try Clorox bleach! Isn't that a harmful chemical?
Killing Mint Plants
Certified GKH Gardening Expert
The article you bring up states: "Many people have had luck using Clorox bleach to kill mint." This does not mean you should grab the bleach and start pouring it on. Actually, in a sense, you are right--bleach can be harmful. However, it would take many gallons to make any significant change to the targeted area. Also, since bleach is an effective bacteria killer, it will kill off your soil bacteria, rendering your soil sterile. For this reason, it should not be used for weed control, though many people still prefer to use it. One thing to consider here if you MUST use this type of weed killer is the fact that non-chlorine bleach is much easier on the environment than regular chlorine bleach.