this has appeared in one of my plantpots
i think it's rather pretty
(http://i2.photobucket.com/albums/y31/GREENWIZARD/P8120066.jpg)
(http://i2.photobucket.com/albums/y31/GREENWIZARD/CopyofP8120064.jpg)
Possibly a form of Hyssop?
looks a bit like black horehound although that can smell not so nice but almost definitely a plant from the balms or labiateae family
thanks but i found out it's agastache
yes, it is very nice but as I said it is part of the labiatae family (same as laminaceae) ;)