I had never heard of it before, so I looked it up. Turns out the reason I'm not familiar with it is that it is a tropical perennial, only hardy to zone 9 or 10. But you are right, it is in the mint family. The square stems are a give-away for that. And all of the square stemmed, mint family plants behave the same way, being aggressive spreaders from the roots.
But it looks like you would have to grow it in a pot and bring it in for the winter.