JRsbugs said:Where is it growing stone?
the leaf looks to match that of Eupatorium fistulosum.
AKA Joe pye weed...
I collected the seeds in a horse pasture in Macon Georgia because of the floral resemblance to joe pye, which hasn't bloomed reliably in my sandhill garden.
This year isn't the best year for testing plant hardiness due to the amazing rainfall we've lucked into.
But... I did find the plants growing in some very dry conditions...
Joe pye is a tall plant, often growing 8 or 9 feet (or more!)
This plant is short, growing 2 feet (or so), with blooms on some individual plants that are less than a foot in height!