The sunflower is a plant native to America that has many yellow flowers grouped together. The external yellow flowers are sterile while the internal yellow flowers are fertile and will produce fruits and seeds. Sunflowers get their name because their leaves and flowers follow the sun. They need water, minerals, and sunlight to grow. Common enemies of sunflowers include slugs, gray worms, green bugs, and beetles. Sunflower seeds are used to make oil and their flowers are used in bouquets.