What direction do the flowers face? Sunflowers follow the sun.
Are any of the seeds toxic? No, they are not toxic, however only the giant sunflower seeds are good for eating.
Why are the seeds hollow? This could be from a lack of pollination, sunflowers need insects for pollination. Also sunflower moth larvae may leave tiny holes in the shell.
How many flowers does each stem of the giant flowers get? One.
How long do sunflowers bloom? Sunflowers bloom for about 4-6 weeks.