I have this mint to trade.Its a toss up between pycnanthemum flexuosum or pycnanthemum clinopodioides.It looks like both.Mine grows from 3ft to 4ft and the blooms are flat on top of the stalks.Smells great.I plant it along a walkway for the smell.Bees and butterflies love it.Mine starts blooming early summer and returns every year.E-mail me for a trade as I don't check this forum as often as I should..Debbie