Sunflowers

If the sunflowers are not a hybrid variety, then you can save the seed by cutting the flowers when the seeds are fully formed and loose in the head, drying the whole head for two or so weeks, rubbing them from the head, drying for a further couple of weeks, and replanting in the spring. you can use hybrid varieties as long as long as they are not sterile in which case you wont get any seeds anyway. you just wont get the same flower vigor and or good looks. zaf.

Yes you do. They will sprout with it on the leaves and it will get loose and fall of.

Most varieties are self-pollinating. Otherwise, you should probably just let bees do the work; they love sunflowers.

Unless you grow a dwarf type of sunflower, such as "Teddy bear" you would not grow them in pots. Most sunflowers grow tall, and become rather top-heavy. Sunflowers need lots of room to grow--including the roots, which need to spread out beneath the soil in order to anchor the plant. Even muli-stemmed sunflowers, whose individual flowers are fairly small (for a sunflower), get top-heavy because of the number of flowers on the stem. So, if you absolutely MUST grow one in a pot, select the shortest cultivar you can, and still put that in an over-sized pot. So, sunflowers grow better in the ground, but it is possible and challenging to grow them in pots.

I am not sure about heat but I do know that they grow better when they are planted in direct sunlight.

Well Yes and No. While eating the shell gives you fiber , if left in sharp pieces the shell can damage something on the way down the digestive system. If chewed into little bits it should be safe

Because it has both male and female reproductive organs lacking

no they find nutrition in grass

Well they first start by soaking the seeds in human urine to moisten the shell so it is easier for the shell to be cracked off. Next, you lubricate it with vaseline or any lubricant really, after that suck them hard baby then the shell will pop off and you can roast the seeds until your hearts content. :DD

Yes, sunflower seeds are biodegradable.... All things that come from plants are biodegradable.

Nature invented it

Yes. Several species of sunflower grow naturally there. If you grow a domestic cultivar, you just need to make sure it has enough water; they aren't quite as well adapted to drier conditions.

Department of Agronomy
Of all crops harvested for seed around the world, only one was domesticated in America - sunflower. This widely adapted crop is now grown in every temperate region, including many parts of the U.S.
In the U.S., 2.7 million acres were grown in 1991, about 85 percent of which was oilseed sunflower. The rest was grown for whole-seed confectionary uses. North Dakota has been the leader in sunflower production, with 1.4 million acres in 1991. South Dakota and Minnesota are the next biggest sunflower producers.
Kansas grew about 75,000 acres of sunflower in 1991, about two-thirds of it oilseed varieties. Nearly 20,000 acres were grown in Missouri in the late 1970s, but Missouri acreage declined to a few thousand acres after prices fell. The 1990 Farm Bill has renewed interest in sunflower, since it established new farm programs to promote sunflower and other minor oilseeds


Wikipedia (slightly abridged) says:
...
The sunflower is native to the Americas. The evidence thus far is that it was first domesticated in Mexico, by at least 2600 BC. It may have been domesticated a second time in the middle Mississippi Valley, or been introduced there from Mexico at an early date, as maize (corn) was. The earliest known examples of a fully domesticated sunflower north of Mexico have been found in Tennessee and date to around 2300 BC.

sunflowers fart producing a methane gas called methane gas. it is a smell anti toxian that could kill u

Sunflower belongs to the family Asteraceae (Compositae).

The sunflower (Helianthus annuus) is an annual, summer flowering plant categorized as a dicot. Not only is it a beloved ornamental, but the seeds have a multitude of uses, primarily as a food source, but also in paper production and other manufacturing products. The large-faced blossom is equated with the sun, which has made it a favorite worldwide in religious and secular groups. It is the flower of choice for such people as Vincent Van Gogh, Michael Jackson and mathematicians studying the floret arrangement of the seed head.
The sunflower (Helianthus annuus) is an annual, summer flowering plant categorized as a dicot. Not only is it a beloved ornamental, but the seeds have a multitude of uses, primarily as a food source, but also in paper production and other manufacturing products. The large-faced blossom is equated with the sun, which has made it a favorite worldwide in religious and secular groups. It is the flower of choice for such people as Vincent Van Gogh, Michael Jackson and mathematicians studying the floret arrangement of the seed head.

they play tug of war with eachothers stems , sometimes they lie so they grow.

Cats can eat sunflower seeds, but only in very small doses.

The "annuus" part of the name comes from the fact that the common sunflower, unlike other related species, is an annual plant and not a perennial. The genus "Helianthus" comes from the the Greek word "Helios", or sun, and the Latin word "anthos", meaning "flower."

The best fertilizer to use on sunflowers is synthetic liquid fertilizer. This grows the sunflowers the highest. Monty's fertilizer works very well. Although, sunflowers really grow the best with no fertilizer and just a good seed-starting soil.

you can make projects like

draw out a banner

and paint on it!

and then put sunflower seeds on it!

and u can get a big sized picture of either a butterfly or a fish

and u can fill it with sunflower seeds

however if u do not wanna use the same old color of the sunflower seeds

then u can paint it!

All of the petals of a flower are called a corolla. The calyx, made up of sepals, is located beneath (behind) the corolla. The sunflower is one of those plants that has a flower head. The inner florets have very reduced (small) petals. They will form the fruits/seeds. The outer florets (ray or petal bearing florets) can be yellow, red, orange or a combination of those colors.