A few include striped, black oil, ring of fire and mammoth. Some kinds of sunflowers produce a lot of seeds. Others don’t. Are These Seeds Prepared and Processed Differently? No. They’re all ...

These sunflowers can grow to astonishing heights, often exceeding 10 feet. Their flowers have broad petals, and the central seed disk is equally impressive. The "Russian Mammoth" variety is one of ...

The height of Mammoth sunflowers ranges from about 9 to 12 feet ... and animals like birds and squirrels who like to eat their seeds. One of the rarest types of sunflowers, Schweinitz’s ...