Looks like catnip to me, but mine never gets that high. Either my neighbors cat gets it or I pick it off for my cats. Maybe I should plant more to give it a fighting chance.
I actually know what it is, but I suspected it's not commonly known, despite being useful. Horehound. We planted it to attract bees to our gardens, but it has many more uses. More info at:
I thought maybe the cat in the photo was a hint, so I was going to go with Sandra (catnip) or Kate (cat mint - although I'd never heard of that before). lol
Sorry Cheryl, I can't be one bit useful to you - just couldn't resist the kitty!!
http://www.herbs2000.com/herbs/herbs_horehou...