About a week ago, my daughter put a marigold flower in a water bottle in the kitchen window. When I was about to discard it because the flower had dried up, I saw that the stem had rooted. The children loved this, so they picked two new flowers and put them in a water bottle and jelly jar in the same sunny window spot to grow more roots. This time, we'll check it every day. I planted the marigold with its roots in the herb garden, and collected the seeds from it's dried up flower. The other seed pod in the first photo is a milkweed pod.