The Sunflower Cycle

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Life Cycle Of Sunflower Time Lapse – Seed to Flower in 75 Days shared with permission from Amazing Tube

The Sunflower Cycle

The lifecycle of a sunflower begins and ends with a seed.

The germination phase begins the sunflower’s life cycle. Roots develop from the seed and a new shoot pushes through the surface of the soil.

The shoot is looking for sunlight. Many things need sunlight to grow.

The seedling reaches its tiny leaves here, there, and UP!

The seedling begins to emerge from the soil. This is a signal that the sunflower is beginning the next stage of life. The sunflower shoot thickens and grows into a strong stem!

As the seeds ripen, the back of the sunflower head will turn yellow.

The bud of the sunflower forms, and initially has a star-like appearance. Some organisms will pollinate the flower and fertilize the seeds. Over many days, the seed will transform into a tall stemmed, yellow-bloomed plant.

The blooming phase then follows, and the flower is fully grown.

Some flowers have seeds, and some don’t! The flowers might be seedless if: it isn’t pollinated, if there is heat or drought after pollination, or if its modified to be seedless!

The sunflower will grow leaves and reach for the sun. As the sunflower grows they continue to stretch out the stem and point the petals toward the light.

At the end of the life cycle, the sunflower will die.

The sunflower droops, their petals begin to shrink, and some will change color and fall. The petals will fertilize the soil in the ground beneath them.

The life cycle of the sunflower begins with the sunflower seed.

The Sunflower Cycle Zine

Resources to learn more about the sunflower life cycle:

“Sunflower Production”. North Dakota State University. Archived from the original on 18 August 2016. Retrieved 12 July 2016.

Mason, Chase M.; Patel, Hiral S.; Davis, Kaleigh E.; Donovan, Lisa A. (2017). “Beyond pollinators: evolution of floral architecture with environment across the wild sunflowers (Helianthus, Asteraceae)”. Plant Ecology and Evolution. 150 (2): 139–150.

“How Sunflowers Move to Follow the Sun”. UC Berkeley Rausser College of Natural Resources. Retrieved 2020-05-01.

Jones, Gregory A.; Gillett, Jennifer L. (March 2005). “Intercropping with Sunflowers to Attract Beneficial Insects in Organic Agriculture”.

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