Herbs Mint?

[big rockpile]

Reading about different perennial Herbs and several are in the Mint family.

Do they spread like Mint? Going to plant in a Raised Bed so them spreading out of them is not the problem it's will they overtake the Bed?

big rockpile

 

[Oliver Buckle]

I heard that if root systems of different types of mint mix they lose their distinctive smell, pineapple, lemon, whatever, and all end up smelling of ordinary mint. It was a woman from Devo on the radio who grows over a hundred different ones that said it.