The magic of sunflowers lives in their entire being: from their nutrient-filled seeds and oil, to the way their petals follow the sun, to the mathematical secret behind their spirals.
The pattern of the seeds inside the head of a sunflower follows the Fibonacci sequence: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, etc. Each number in the sequence is the sum of the previous two (55=34+21).
In sunflowers, the whorls at the center grow in this proportion. (Count the number of curves that grow in one direction, from the center to the petals, and then those that grow in the opposite direction.)
This happens in many other plants and flowers. They grow in spirals, from the center out. This is so that the new leaves do not block the sun from the previous ones, or to cover the maximum surface area to receive as much rain as possible.
This is also why if you count the number of petals on a flower, daisy or sunflower, you will see that it corresponds to some number in the Fibonacci series (on average, some petals may fall off as they grow).
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