Think about it. The nastiest place in the house is probably the best place for plants. lol. Hell, llama manure is nasty but it's supposed to do wonders for plants, so this doesn't surprise me all that much. IT WANTS TO LIVE!!!!!Wow. I guess weed really will grow anywhere. Even in the nastiest place in the house.
I spent a couple decades spreading seeds (along with my buddy) along the entire Rio Grande river valley from south of Albuquerque to south of El Paso. Our "dream" was that, once started, a wild population of weed would be like roadside in the Midwest. Just a dream. Not that we didn't harvest a lot and a few places did reseed. But time, weed killers, drought, floods. It would require a much larger area in 1000's of square miles of self-sustaining plants to help recovery after disaster. At least in that region.This is exactly why if I had the resources, I would be littering this world with seeds. lol I don't want to hear it. it's my fantasy and one day you'll thank me.