No one it grew naturally.
It grew a lot
The shell of a sunflower which is white and black striped protects the seed inside of it. The seed, if planted becomes a sunflower plant.
No they have been processed for selling.
In places such as Oklahoma sunflowers are voluntary plants and do not need to be planted but pulled.
I am not sure about heat but I do know that they grow better when they are planted in direct sunlight.
Idaho is the state were the first potato was planted.
it was planted in 1840
Steven Briand planted the first plant in 1862.
sunflower
Typical sunflowers that are planted are annuals; however, there is a newer crop being developed called "perennial sunflowers."
the first potato planted in the US was in New Hampshire.
.Yes,they do. but,they eat the skin of the sunflower first.