Why do sunflowers appear yellow?

Why is a sunflower yellow: Sunflowers are annual flowers with a thick and fairly big flower head usually consisting of bright yellow petals. These Native American flowers are known as the sunflower because of the overall shape and structure of the flower. read more

Beach sunflower (Helianthus debilis), like common sunflower, is another type that blooms from midsummer through early fall, but it is perennial rather than annual. Yellow blooms appear on its multiple branches. read more

Sunflowers do best in soil with lots of water holding capacity, drainage and fertilzer. Sunflower roots grow deep and spread a lot, so they can stand a dryspell every now and then. You should not over water a sunflower 20 days before and 20 days after flowering. This might deform the flower heads. read more