The scent in the air changes dramatically as you near the field reverting to forest. Probably all the decay -decay never smelled so good.
I've seen lots of this in different regions of the North East, but I do not think it looks like a weed. My guess on this one is Lysimachia, a native one. On the farm, its growing in the old field reverting to forest, trail-side. See the whorled leaves and little flower buds shooting out from the petiole.
Too bad I'll miss blueberry season.
Cow Wheat, Melampyrum lineare, a native of eastern N.A. I found a patch of it growing beside the trail in the field reverting to forest.
Mountain Laurel, Kalmia latifolia, is now in bloom in the woods, underneath the oak and tulip trees. Mildly scented, you can pick it up as you walk through the laurel forest.