Brief introduction of sunflower
Sunflower, also known as sunflower, sunflower, sunflower and sunrise, belongs to Campanulaceae, Compositae and Sunflower, and is named after its inflorescence rotates with the sun.
Sunflower plants consist of five parts: roots, stems, leaves, flowers and seeds. The height of the most common sunflower is 2.5~3.5 meters, and the highest can reach 9. 17 meters.
The growth period of sunflower refers to the days from emergence to seed maturity, which is generally more than 85~ 120 days. The whole growth period of sunflower is divided into four growth periods: seedling stage, budding stage, flowering stage and mature stage.