so, we had this little pot on the back porch. it once had parsley growing in it. i had it indoors over the winter, until the plant died, for one reason or another. once the weather warmed, i noticed a lot of life in that pot. tons of little seedlings were taking over. they were not parsley. i didn't recognize them at all. they didn't look like any of the common weeds around here nor any think i'd ever planted. mystery.
a few weeks ago, i saw someone at the farmer's market selling sweet annie seedlings. they looked just like those mysterious plants on my porch. then, i put it all together: i had hung the dried sweet annie, that shawn and denise gave us last year, out on our porch light.
it had been inside all winter, but had lost its fragrance, and was beginning to annoy me. i hung it outside in the early spring. the seeds had blown down, into that pot, and sprouted. voila! sweet annie in a pot.