Helianthus
Yes they are endangered
You need to be growing the proper species. Not all of them will grow that tall. Look for "Giant" sunflower seeds.
it depends on the type of sunflower
With the exception of Jerusalem artichokes, all domesticated sunflower varieties are annuals. There are a few wild species that are perennial.
Oh, dude, the hybrid sunflower species can't live in Antarctica. Like, I mean, it's pretty obvious, right? I don't think they'd enjoy the freezing temperatures and lack of sunlight. So, yeah, if you were planning on starting a sunflower farm in Antarctica, maybe think of a different location.
Up to 1,000 seeds can be produced from one sunflower head. Some may produce more or less depending on the exact sunflower.
It cannot live on Mercury because the atmosphere is too tenuous.
No, sunflower sea stars do not typically have symbiotic relationships. They are predatory creatures that feed on a variety of invertebrates and do not form long-term partnerships with other species.
Each sunflower head can contain as many as 800 to 2000 seeds. These seeds can vary in appearance, but the most common type used for snacking is black with a white stripe pattern on the hull. These seeds are the means of sunflower reproduction, and can be planted to grow into a new sunflower the following growing season.
Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds. Sunflower seeds.
sunflower oil, bird seeds