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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

How do sunflowers respond to stimulus?

Sunflowers exhibit a phenomenon known as phototropism, where they grow and turn their heads toward sunlight to maximize light absorption for photosynthesis. This movement is driven by differential growth rates on the shaded side of the stem, causing the flower to bend toward the light. Additionally, sunflowers can respond to other stimuli, such as touch or gravity, although these reactions are less pronounced than their response to light. This adaptive behavior enhances their growth and reproductive success in their natural habitat.

What does 'open as sunflowers in my hands' mean?

The phrase "open as sunflowers in my hands" evokes a sense of warmth, growth, and vulnerability. Sunflowers are known for their bright, cheerful appearance and their tendency to turn toward the sun, symbolizing hope and positivity. This imagery suggests a feeling of tenderness and connection, as if the speaker is holding something precious that is blossoming and revealing its true beauty. It may also imply an openness to love or new experiences.

What country is the number one consumer of sunflowers?

Ukraine grows the most sunflowers, primarily to use and export the seeds. In second place is Russia.

In 2014, the US was 11th among sunflower growers.

How do you prune sunflowers?

I would suggest with a pair of heavy clippers or a large sharp knife while warring gloves,.. then you cut them off with stems long enough to make a good sunflower display in the vase or what ever you are planning on holding your sunflower arrangement. Remember to be creative with your arrangement.

Can you plant sunflowers when ground is wet from rain?

of course you can - you can plant any plant in the wet ground - they love it!

How long have sunflowers been on earth?

The sunflower (Helianthus annuus) is an annual plant that originated in Southeastern U.S. about 5000 years ago. It was used by the local natives in bread, medical ointments, dyes and body paints. Making it way to Mexico (trading between tribes) it was a valuable plant used by the Aztecs and Otomi of Mexico and the Incas of South America. In 1510 the Spanish explorers carried seeds back to Europe, and it became very popular across the continent as a food source and as an ornamental flower.

Is the sunflower native or non-native?

Everything is native to somewhere. You need to be more specific about the area you are inquiring about.

Is a sunflower a heterotroph or a autotroph?

it is an autotroph because it makes its own food.

What are the sunflowers habits?

Sunflowers don't have habits. People have habits.

How long do dwarf sunflowers bloom?

Depends on the breed but usually 1-3 months at 3-6 feet.

What is a sunflowers nationality?

Sunflowers are native to North America

Are 'Indian Blanket' sunflower seeds edible?

As the flowers are grown for decoration and are sterile, they don't make great eating.

Do sunflower seeds have iron?

Sunflower seeds are rich in iron. Two pounds of sunflower seeds contain about 21 milligrams of iron.

Why is it incorrect to refer commercial sunflower seeds as seed?

Commercial sunflower seeds in their hulls are more correctly called achene's. When the hull is removed, the remaining edible sunflower seed is called the sunflower kernel or heart.

How long can you store sunflower seeds?

There's no specific shelf life for whole sunflower seeds. People have germinated sunflower seeds that are more than seven years old. Generally speaking, seeds that are less than two years old will have the greatest chance of viability.

What do sunflowers produce?

Sunflower seeds, which yield sunflower oil - you've seen it in the grocery.
There are many products that come directly from sunflowers.

Some of these include:

  • Raw or roasted sunflower whole seed as a snack food with or without seasoning
  • Butter - similar to peanut butter, it is called sunflower butter
  • German sunflower whole seed breaed
  • Bird food - either alone or in combination with other seeds
  • Shelled seeds can be used in salads.
  • Sunflower oil is used in cooking, margrine, biodiesel and other products
  • Native American uses: bread, medical ointments, dyes, body paint
  • "Cake" left over from oil processing is fed to livestock
  • Ornamental plants for home gardens use also to attract seed-loving birds
  • Sunflowers produce latex - may be used to produce nonallergic rubber (gloves)
  • They have been used in phytoermediation to extract harmful items from soil