What season is the best season to grow sunflowers?
Sunflowers grow in the summer and will face the sun when in bloom. In most areas, sow them in spring. In very mild climates, they sometimes also grow during the cooler months as well.
Sunflowers grow near highways and Kansas, Minnesota, and North and South Dakota are one of the cheifs in growing sunflowers.
Aphids depend on the sap of plants for food, while some species feed on only a particular type of plants. Most aphids feed on different types of roses, while others feed on bamboo, willow, oak, walnut, maple, sugarcane, lettuce, alfalfa and more. Some types of aphids are also known to feed on grape vines.
Are sunflower seeds poisonous?
The leaves, stems, and seeds are allelopathic, which means that they will release some toxin or toxins (not harmful to humans and pets in small doses) that prevent or slow the growth of other plants in the effected area. Sunflowers excrete a toxin that prevents seeds from sprouting and seedlings from growing. The toxin is biodegradable it takes about 3 months for the toxin to completely dissipate. This being said however as long as the sunflowers are not right next your other garden plants they will most likely be fine.
Natively, Helianthus annuus is found in Central America, with related species appearing as far north as Canada. Domesticated sunflowers are grown in mass quantities in the Midwest United States, Russia, Ukraine, German, France, South Africa, and parts of Australia. The sunflower is fairly rugged and can be grown in most countries given enough care.
Can sunflower seeds go bad even if they're unopened?
The shelf life of sunflower seeds is affected by seed moisture content, seed age, and ambient temperature. So the expiration date's sooner the older the seed; the further away the temperature in either direction from 25 degrees C/77 degrees F; the closer the relative humdity to 75%, the higher the seed moisture content, the greater the damage to seed membranes.
Which dutch artist painted the sunflower?
Vincent van Gogh, who was not really an impressionist. [He was a post-impressionist.]
What happens to a sunflower when all of its petals come off?
To attracted insects to pollinate them so that seeds will develope.
When do you deseed a sunflower?
once the petals have pretty much fallen off, cut the flower off, leave it upside down on a tray or something. after a while the seeds will drop out by themselves and the tray will catch them :-)
How do you make sunflower seed grow faster?
Water and liquid feed applied according to the makers instructions.
How fast does a sunflower grow?
Plant can take 75 to 90 days to mature. If you want a fast growing plant that will mature in a short time then plant radishes. Some radish varieties can be ready to harvest in 22 or 23 days.
Yes. All plants let their leafs grow towards the angle of the sun.
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Also many flowers orientate themselves to face the sun through the day, this is especially true of arctic species.
.Yes,they do. but,they eat the skin of the sunflower first.
Vitamin C, Thiamin, Niacin, Vitamin B-6, Folate, Vitamin A, Vitamin E, etc.
Can canary eat sunflower seeds?
they eat any healthy canary food, but they LOVE millet you can find all this at a pet store or you can ask the person you bought it from what they fed it
What do the sunflowers look like?
they are really tall and are yellow and have black seeds in the middle
The roots of sunflowers excrete toxin (not harmful to humans and pets) that prevents seeds from sprouting and seedlings from growing. The toxin is biodegradable but in the growing season it just might affect another sunflower shoot when planted too close together.
Is sunflower a terrestrial plant?
Yes. All sunflowers grow on land, though a few species can tolerate marshy areas.
What threatens sunflowers existanse?
Sunflowers have sevral sworn enemies, although the biggest threat to the sunflower population currently is the Moonflower.
What do you do with sunflowers?
The best thing to do with sunflowers is to grow and enjoy them. They make excellent cut flowers if you have a big enough vase.
Other uses for sunflowers (Helianthus annuus) include the following:
Where are sunflower seeds located?
they are located in most of the US and mexico... in prairies, pastures, and roadsides.
Are sunflowers supposed to droop over when mature?
Yes. In fact, this is often selectively bred for, to stop birds from eating the seeds.