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after pollination, a sunflowers head turns to the north.
SUNFLOWERS Sunflowers grow tall Lift your head to be bright sunshine Mother Nature's child
You Take the seeds out :)
Yes, if you 'dead-head' or cut off the heads of sunflowers, the plant will usually continue to produce more flowers. This varies somewhat with the variety of sunflower and the bushy type will produce the most flowers when flower heads are removed.
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.
it takes up to a week for a the seed to germinate, then it can take up to a month for it to turn into an actual plant, then a few weeks from then for the sunflower head to start growing. so all up it takes a few months for the sunflower to actually grow and you won't get any seeds from it until it is fully grown. :)
Cut the head of the sunflower off when it is in full bloom. Let it dry. Pull the seeds out. Sunflowers are super easy to grow from seeds. Bird even "plant" them.
Sunflowers will bloom naturally when they are ready. It can take several weeks from the initial formation of the head to develop fully and bloom.
Sunflowers grown in full sunlight will grow straight and tall. Leaning is caused by either the plant growing towards more sunlight (heliotropism) or a mature seed head weight the plant down slightly on one side.
The sunflower seed is the fruit of the sunflower (Helianthus annuus). The term "sunflower seed" is actually a misnomer when applied to the seed in its pericarp (hull). Botanically speaking, it is more properly referred to as an achene. When dehulled, the edible remainder is called the sunflower kernel.Remember that sunflowers are Composite flowers, consisting of disc and (sterile) ray florets grouped together on a "flower head". Each disc floret has its own ovary and produces its own seed.Refer related link
Domestic sunflowers are annuals. The plant will die off completely at the end of each year. If the seeds are left on the head to fall off and scatter, it is possible that new sunflowers will grow there the following year. Some species of wild sunflowers, as well as Jerusalem artichokes, have a tap root that will allow the plant to grow back the following year.
First of all, humans enjoy sunflower seeds, as well as the roots of a sunflower known as the "sunchoke" or Jerusalem artichoke. Other animals that enjoy a nibble on a sunflower head, or parts of the plant, are birds, rodents, rabbits, insects, etc.