Sunflower
stage is reached.
Sunflowers in the blooming stage are not heliotropic anymore. The stem has frozen,
typically in an eastward orientation. The stem and leaves lose their green color.
The wild sunflower typically does not turn toward the sun; its flowering heads may face
many directions when mature. However, the leaves typically exhibit some heliotropism.
Cultivation and uses
A sunflower farm near Mysore, India.
Sunflower heads solds as snacks in China.
Sunflowers are native(pärit) to the Americas. The earliest known examples of a fully
domesticated sunflower were found at the Olmec site of San Andrés dating some time
before 2500 B.C.[1] The Incas used the sunflower as an image of their sun god. Gold
images of the flower, as well as seeds, were taken back to Europe early in the 16th
century.
The Giant sunflower (Hlianthus giganteus) is native to Connecticut. They can grow to be
between 3 and 12 feet tall
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