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Sunflowers

The Sunflower, Helianthus annuus is an annual flower of the Americas best known for its bright yellow petals and delicious seeds.

1,001 Questions

What does sunflower mean?

The sunflower generally symbolizes adoration, loyalty, and longevity. It is also associated with positivity, strength, and growth due to its characteristic of following the sun's path throughout the day.

Why do wild sunflowers grow next to the highways in the desert and they don't grow anywhere else?

The basics of it is that sunflower seeds get dropped all the time but usually land on hard ground and never make it under the soil. By highways and dirt roads and the edge of planted crop fields the soil gets turned over quite often, therefore putting the seed in the ground.

How much water does a sunflower need?

Sunflowers typically require about 1 to 1.5 inches of water per week. The water needs may vary depending on the stage of growth, weather conditions, and soil moisture levels. It is important to avoid overwatering as it can lead to root rot.

What is the growth rate of a sunflower?

http://www.seattlecentral.org/qelp/sets/009/009.html has a growth chart showing the height of a sunflower on various days.

In general, questions about growth rates must specify the time interval. Is the question about the first 30 days of the sunflower's life or the days between 60 and 90? The answer would be very different.

From the data at the link above, for the first 28 days, the growth rate is 3.5 cm per day. For the days betwen 63 and 84, the growth rate is 0.35 cm per day, or about 1/10 the growth rate during the first 28 days.

Why is sunflower seed rich in oil?

Sunflower seeds are rich in oil because they are rich in poly-unsaturated fatty acid and mono-unsaturated oleic acid. Sunflower seed oil is extracted from the seeds by pressing them with great pressure.

How does the Sunflower track the sun?

No-one really knows the exact mechanism for 'heliotropism' -or sun tracking.It appears that an external factor ( the sun) is triggering a not -yet understood factor within the plant.It is still being researched.

Heliotropism is the term used to describe the tracking of the sun by the flower buds of sunflowers. Other plants also have flowers and/or leaves that track the sun. First, let's discuss how the plants are able to track the sun. There is a collection of specialized cells at the base of the flower bud or leaf called a pulvinus that carry the "motor" cells that enable the plant leaf or flower to track the sun. These cells enlarge or shrink according the turgor pressure from the water inside them. In response to blue wavelength light, potassium ion concentration increases in the "motor" cells on the shadow side of the pulvinus. With the increase of potassium ions the osmotic potential in the cells becomes more negative and the cells absorb more water and elongate, turning the face of the flower to the sun.

My Sun conure is addicted to sunflower seeds.If the seeds aren't in his food he SCREAMS How can I stop the addiction AND keep my sanity?

Unfortunately, as well as being among the more intelligent creatures, the parrot clan are also among the most stubborn -- and are well-equipped to show it, as you know.

Try weaning him off by SLOWWWWLY reducing the amount. Or consider not worrying about it. What does your vet say? Are the seeds bad for him, or are you just tired of the mess? Reply:: He hasn't been to the vet in a while. They told me along with where I got him sunflower seeds are bad for birds because (1) they become addicted to them (2) they are very high in fat. : Unfortunately with my job situation and a lack of adequate bird stores in my area I had to buy his food at walmart. Which in turn is LOADED with sunflower seeds (because they are so cheap) and now Im paying for it dearly. : I am trying the slow weaning process, but the screaming is horrible. My cat actually screams back at him. He knows when he is out of sunflower seeds and screams accordingly. I've been trying to cut down on replacing the food, because all of the rest of the seed is still there. : I have the only sun conure I know of that doesnt like fruits/vegetables. He doesnt eat pellets and only has certain chew toys!! Lol.. I got a picky bird!

What domain is a sunflower?

The sunflower is a plant, and all plants belong to the taxonomic domain of Eukarya.Eukarya covers all organisms in the Kingdom Plantae, as well as the Kingdoms Animalia, Fungi and Protista.

What is the scientific method of sunflower?

The scientific method involves making observations about sunflowers, formulating a hypothesis to explain these observations, designing and conducting experiments to test the hypothesis, analyzing the data collected, and drawing conclusions based on the results. This process is iterative and may involve refining the hypothesis or conducting further experiments to gain a deeper understanding of sunflower biology or behavior. Ultimately, the scientific method is a systematic approach to investigating and understanding the natural world.

Is a sunflower an angiosperm?

Short answer: the sunflower IS an angiosperm (flowering plant).

Here is the taxomomy (classification) of a sunflower:

  • Kingdom: Plantae -it is a plant
  • Subkingdom: Tracheobionta - it is a vascular plant
  • Superdivision: Spermatophyta - it is a seed plant
  • Division: Magnoliophyts - Flowering Plants (this is the division of Angiosperms)
  • Class: Magnoliopsida - dicotyledons
  • Subclass: Asteridae (aster is Latin for "star" - these flowers are star-shaped)
  • Order: Asterales
  • Family: Asteraceae
  • Genus Helianthus (heli = sun + anthus = flower)

yes.

How tall is the tallest sunflower in the world and where was it grown?

The tallest sunflower measured 30 feet and 1 inch and was grown in Germany in 2014.

How do you get a sunflower dragon?

There are different combinations that give you a chance of getting it.

Sonic+storm= sun or moon

Fire+storm= sun or moon

If you want more search it on google thats how I got these

What words can you make using the word sunflowers?

Some words that can be made from the letters in sunflowers are:

  • eel
  • elf
  • eon
  • euro
  • few
  • flew
  • floss
  • flour
  • flow
  • flown
  • flue
  • foe
  • for
  • foul
  • four
  • fowl
  • fuel
  • fun
  • fur
  • fuse
  • fuss
  • lens
  • less
  • lose
  • loser
  • loss
  • louse
  • low
  • lower
  • lure
  • new
  • no
  • noel
  • nor
  • nose
  • now
  • nurse
  • of
  • on
  • onus
  • or
  • our
  • ow
  • owl
  • own
  • roe
  • rose
  • row
  • rue
  • run
  • ruse
  • sew
  • snore
  • snow
  • so
  • sole
  • son
  • sore
  • soul
  • sour
  • souse
  • sow
  • sown
  • sun
  • sure
  • surf
  • swore
  • sworn
  • us
  • use
  • we
  • woe
  • won
  • wore
  • worn
  • worse
  • wren

How tall is the average of the sunflower?

I have seen 8 foot sunflowers.

~

There are so many different kinds of sunflowers, you have edible ones, you have those for decorative and also the ones you plant for the wild life. I just planted the TEDDY BEAR, which is a softer fuller looking, 4-5 foot height.

So an average height would be 5-8 foot, this being of your general garden variety seed stock.

Stock seeds planted for food oil does not need height to be a good plant. In fact, hybrids of crops for food consumption not using the stock for food or silage, can be shorter than previous years. Example: the new field corns being planted are for faster growth, shorter, less waste. So a 5 foot stalk of corn, versus 8-9 foot increases your yield per acre.

Which direction dose a sunflower point?

Sunflowers are phototropic, so they face the sun.

How many sunflower seeds come in a bag?

Probably very few. Sunflower heads are processed at the factory producing the sunflower seeds by the thousands, and in washing, sorting, etc, a great deal of "mixing" takes place. A bag of sunflower seeds probably has seeds from dozens/hundreds of heads in it.

Are sunflowers angiosperms or gymnosperms?

The flowering plants (angiosperms) are also known as Angiospermae or Magnoliophyta. There are more than 250,000 of these seed producing plants. YES, sunflowers are included.

Characteristics of Angiosperms:

  • Flowers (the thing that sets angiosperms apart from all others)
  • Stamens (specialized to attract pollinators & modified to prevent self-fertilization)
  • Smaller sized pollen (than the gymnosperms)
  • Closed carpel (cuts down on self-fertilization and increases genetic variablity)
  • Smaller sized "egg" (than the gymnosperms)
  • Endosperm (nutritive tissue for embryo, cotyledons & seedling)

The flowering plants (angiosperms) are also known as Angiospermae or Magnoliophyta. There are more than 250,000 of these seed producing plants. YES, sunflowers are included.

Characteristics of Angiosperms

  • Flowers (the thing that sets angiosperms apart from all others.
  • Stamens (specialized to attract pollinators & modified to prevent self-fertilization)
  • Smaller sized pollen (than the gymnosperms)
  • Closed carpel (cuts down on self-fertilization and increases genetic variablity)
  • Smaller sized "egg" (than the gymnosperms)
  • Endosperm (nutritive tissue for embryo, cotyledons & seedling)

Do groundhogs eat sunflowers?

Yes, I watched He/She/It eat them!

Who many sunflowers is there in the world?

True sunflowers belong to the genus Helianthus, of which there are 52 known species.

How many times should you water sunflowers?

it depends on the color of the flower. If it is normal green then just water it whenever it is dry. But if it is yellow that means that you are drowning it

Do sunflowers come in red?

By "red dirt", if you mean the iron tinted red clay of the Southern Piedmont areas, then I can certainly testify that YES, sunflowers do grow in red dirt.

If you mean the red dirt of the Western regions, then I should mention that the upper state areas between the Mississippi River and the Rocky Mountains produce the largest yields of sunflower seed oil in the country. It's a magnificent thing to see acres and acres of sunflowers in full bloom.