Today I'll post an illustration of peppermint from earlier this year:
Here is an interesting fact about mint from the SESE catalog: Mint grown from seed does not come true and produces plants which vary
in flavor from spearmint to menthol mint to peppermint. I guess they are kind of like us humans, you never really know what you're going to get because we have so much diversity in our genes. Apples are the same way, that's why we have to graft stems from existing trees onto new roots of other trees if we want to get more apples that taste the same way. So, I suppose if you find some mint that you really like, let it spread and enjoy it while it lasts.