Sunflower or Helianthus annuus is one of the flowers are quite famous. This interest comes from America, is the Asteraceae family. The color is yellow and shaped like the sun makes him easily recognizable. This plant is an annual plant, after flowering and ua he will die. In order to grow well, sunflowers need to be given ample water, fertile soil and sunlight should be plenty.
In addition to beautify your flower garden, this flower also has a sale value. Sunflower seeds can be used to make oil. This oil is used for salad dressings, margarine and cooking. In addition the seeds are also good to eat, have a high nutrition.
Sunflowers have properties heliotropis or follow the direction of sunlight. These plants have an auxin can control plants.. Usually the amount of auxin in the more distant parts of the beam, so the sunflower always grow towards the sun. But the flowers are blooming already does not have properties heliotropis again. However, generally sunflower always faces east.
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