How do you get rid of mint once it has started sending out spreaders?

You just have to dig it up and get all the roots out. When you see it grow again, keep doing it and eventually it will be gone. If you want chemicals, go to the nearest garden center, and they should have something for you.

How do you get rid of mint once it has started sending out spreaders?
You can contain the plant and spray the runners with roundup.
Reply:i could never figure that out.. so now when i mow,, it smells wonderful.,.. from afar,, my lawn is nice and green... up close - now thats another story... i will keep checking this one to see if you get some answers
Reply:Pull up the runners and make sure you get all the roots. I cut all my mint back, dried it, and sold the dried herbal mint at my yard sale. I got rid of a troublesome plant and made money at the same time. I still have mint but I grow it in a container because of its sprawling and spreading behavior. If you dig up the "mother" plant, you will have a good chance of the offshoots dying as well. But I still suggest radical pruning, drying and selling as a good course of action. If you dont want to dig it out, you can post a notice at the grocery bulletin board with a "free for the digging." I got rid of lots of plants from my yard that needed to be divided and I didnt have time. People came by the droves for free transplants.
Reply:You can dig them all out or stop watering from within 5 feet of the plant. Leave completely dry. That's how I got rid of mine since it is too laborious to dig, neglect is a much better approach. But if it always rains... then you'l have to dig. Another way is to smother with cardboard. Leave it covered with cardboard for month, replacing each time the cardboard starts to decay. Not even bermuda grass can survive the cardboard technique.
Reply:Just use boiling water.