I’m one of those idiots that planted mint (deliberately) somewhere within a hundred feet of my garden thinking I could contain it. Before I cared It was cool having all that mint growing. The wind would blow through it. When the windows were open the house was like being in a GD Lifesavers commercial but now I regret it deeply.
I have volunteers both on the creek bank in the holler and the river bank at the river. The creek keeps it in check, it is spreading at the river.