New York ironweed is a perennial plant that is native to the
north-eastern parts of the US where it grows in locations that are
consistently moist and bright. It bears deep purple one-inch flowers
in late summer to mid-fall providing a pop of color in the late season
and has long lance-shaped leaves. In trials at the Chicago Botanic
Garden this ironweed grew to a height or about seven feet and width of
about six feet in sunny conditions and received a good rating for
growing locally.