The peppermint in my wild area has grown huge! It's just now starting to get flower buds, so this must be its final height. It's between 3 and 4 feet high. I never knew it would grow so big. And the scent is powerful and gorgeous! Had to take a pic of Smudge next to the mint to see the size relation.
To answer Snappy's question in my comments as to what I do with the mint..
I've been trying the mint in various dishes. I have made some nice pasta salads with a few chopped up leaves in, it seems to combine well with cheeses, tomatoes and cucumbers.
I did try it as a tea, but prefer the leaves dried first. But my drying method doesn't work. I air dry the leaves, and they are fine for a few days in a jar, then they begin to smell musty. So need to figure out a better drying method.