This plant is growing in my garden and when the leaves are rubbed it smells minty. Can anyone identify it?
Yup. It's Salvia "Hot Lips"
"Delicate red and white blooms create a stunning show throughout summer. Some flowers will bloom in solid red color attracting bees and hummingbirds. With a little protection, this Mexican introduction will happily over-winter in zone 6."
It is Salvia 'Hot Lips' - the salvias include the sages, used in cooking, so what you're detecting isn't mint, but possibly a sage like scent.This one's not generally used for culinary purposes.