I'm fascinated with this giant sunflower.
Something really interesting about it... Once the plant reaches a height of 1 to 2 feet, it starts to be recognized as a sunflower. It reaches for the sky growing ever taller, while at the top of the stem the bud starts to form. Unless the area is experiencing a drought, at this stage the sunflower can rely on regular rainfalls to get its needed moisture. If you were to watch sunflowers during this bud stage, you would see the flowers follow the sun. They start the day facing the east as the sun rises. In a process known as heliotropism, the developing bud will follow the sun from east to west. By morning, it is again facing east, awaiting the sunrise.
Nikon D3400