1dogma: that plant is Agastache ' Blue Fortune'. It a staple plant for us and really the only Agastache we've had great success with in the midatlantic.

Thanks. I'll check it out online.

Actually, I meant the purplish, pinkish larger plant on the hill (?) in the background...

Well that's Eupatorium 'Gateway'. Another great plant. This garden was planted next to a creek and large preserve where tons of weed seed blow into the planting and these plants are extremely effective at keeping out the weeds. Go ahead and check out the Aster tartaricus 'Jindai' ( seen at right) while you'rt at it.

Thanks very much for your help. I will check out both.