My potted marigolds grew into huge bushes of green blossoms. They had started out yellow. Here one is next to one of the yellow ones. I looked up aster yellow, but other than having a green flower, the plant seems healthy. No wilting, no yellowing of hte leaves. It keeps growing bigger with more and more green blooms. The other plants, salvia, alysum, in the pot are doing fine as well. Big, bright and beautiful. They are just like all the others planted around the house. My nneighbors keep asking me what the green one is. Any help on what could have caused this? And will it re-germinate green or yellow - because when the green blooms die, it leaves seeds just as a marigold, but reblooms with the green still.