Oh, and it is not native to the US.

Here is a link that might be useful: USDA

I just assumed since it grew wild it was native...a weed. Imagine that...a very pretty weed none the less. It's considered an Annual...yet also invasive. So it comes back then year after year? That wouldn't make it an annual then would it?

Annual just means the parent plant dies each year and new ones grow from seed the next. Annuals can still be considered 'weeds'. Would not call it invasive as you mainly find it growing in disturbed areas. Can tell by the picture this one was growing on bare ground.

Thanks for the explanation of annual. I'm extremely new at this. After having very bad luck with plants. Figured out our issue was the black walnut tree.

Yes the ground is bare where it came up. We just did the backyard and the hill side near the ravine has fresh baren soil. That it is a toxic plant concerns me a bit. But my dogs don't have easy access to the weed. A friend of mine had a moon plant for years...different bloom. Came back every year except for two years ago it no longer came back. She isn't sure why though. Maybe something happened to it's seeds...
{{gwi:286474}}

There are many toxic plants that grow all around us so that shouldn't scare you. And its been a while (I think I was a kid the last time I find any jimsonweed growing wild around here), but I seem to recall the plants/foliage having a foul smell. Probably even more so to dogs so I can't imagine they would ever bother it. I just mention it since many folks think toxic equals bad and you don't have to obliterate it because it is toxic.

Some sources list the Americas as the native place for this species and some Asia. It seems to be unclear. I live in Western NY State - pretty similar and close to NE Ohio. The only place I've seen this plant was in places most other plants wouldn't/couldn't grow. And in fact, I haven't seen any in decades. I don't think it will overrun your place.

FataMorgana

Oh...okay FataMorgana you've given me food for thought. I did plant a rhodadenron on the far side of the falls due to it being toxic. I have read of a pugnant Oder from this plant as well...so that is also a plus. I do have a dog who'll walk and snip and eat flower leaves and weeds. So I try to keep the toxic ones in an area not as easy accessible to her. Wanted to plant tjhr hill with something to help hold it together against erosion. But do enjoy the weed. Something in that area smells...strong not totally inbearable but thought it maybe the miss growing in the waterfall. Maybe it is this weed then. Loved the bloom...so pretty.

Spell check from my iPhone not always a good thing. lol...Moss growing in the waterfall...something over that way smells...musty. Possibly the weed now that I think about it.