Last year I waited a day too late to gather the seeds from my sunflower. The blossom fell to the ground during the night and scattered seeds everywhere. I decided to cover them up with soil and see what would develop. Only three seeds sprouted from the dozens that were deposited in the earth and all reached maturity, but something nibbled one of the blossoms off before I could photograph it. Anyway, here are the two that were left. They didn't grow as high as the single sunflower plant did last year, but both are in the seven foot range.