1.The scientific name of sunflowers is Helianthus, Helia for sun and Anthus for flower.
2.Sunflowers are a great choice for planting to attract birds to your yard.
3.Sunflowers are one of the fastest growing plants. They can grow 8 to 12 feet tall in rich soil within six months.
4.Sunflower seeds are also used to feed birds.
5.Sunflowers are also an important crop. There are more than sixty different kinds of sunflowers growing in the United States, Europe, Japan and Russia. Sunflowers originally came from the United States.
6.There are two kinds of sunflower seeds. Oil is made from black seeds and snacks are made from striped seeds.
7.The daily orientation of the flower to the sun is a direct result of differential growth of the stem. A plant-growth regulator, or auxin, accumulates on the shaded side of a plant when conditions of unequal light prevail. Because of this accumulation, the darker side grows faster than the sunlit side. Thus, the stem bends toward the sun.