Love this post, but one qualm: Jewelweed is an anual, right? It seems like a perennial in the way it claims a spot and reliably comes back year after year but I suspect that's due (at least in my backyard) to the massive seed bank it creates in the soil and its ability to thrive in low light conditions. My patch is still throwing out high numbers of seeds even as the vegetative part of the plant is turning yellow and brown and starting to die back.