Not quite the same issue that this forum thread is about, but it reminded me about when I moved Lady Neva last year in late spring.
I had it in a poor spot for so many years and meant to move it. It had just one little fan coming up by then so I decide I better move it or next year it would be gone for sure. The picture below is the one fan that I moved. Picture was taken about a month (I guess) after it was moved.
This next picture (taken about the same time) is the spot from which the fan (above) was taken. I SWEAR I saw NOTHING in that hole but the single little fan that I took out and transplanted. WHERE did all these new daylilies come from????
Could it be that a seed pod opened up and planted itself there???
But I don't even think Lady Neva bloomed for the last couple years when it was there.