I have a giant Celosia I call Godzilla. I know they are annual plants. The height is listed as 16"×24" but they've been seen at 3' tall. This picture has our 8 foot tall by 10 foot wide Celosia that came back as a volunteer from last year's planting. It grew to 6'x6' last year! Has anyone ever heard or seen such a monster overgrowth and have it come back as an unneeded annual? Middle Tennessee zone7A