Sunflower Lesson for Kids: Facts & Life Cycle

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  • 0:02 Sunflower Life Cycle Stages
  • 0:30 First Stage: Seed
  • 0:56 Second Stage: Germinating Seed
  • 1:17 Third Stage: Seedling
  • 2:01 Fourth Stage: Mature Plant
  • 2:44 Lesson Summary
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Lesson Transcript
Instructor: Diane Sieverson

Diane has taught all subjects at the elementary level, was the principal of a K-8 private school and has a master's degree in Measurement and Evaluation.

Sunflowers are a kind of flower that are from North America. Come learn about the life cycle of a sunflower from seed to full-grown plant, and some cool facts about this large, brightly colored flower

Sunflower Life Cycle Stages

Imagine yourself in a field of flowers that goes on as far as you can see. These aren't your ordinary flowers. These are really tall and brightly colored. Some are yellow and others are red, and they all have a brownish-colored center covered with seeds. You've just pictured sunflowers!

You look around and wonder, 'But how did these plants start out, and how did they get so big?' Let's look at a sunflower's life cycle from a seed to a full-grown plant.

First Stage: Seed

Sunflowers start out as small seeds. You may have seen these seeds, and you might have even eaten them as a snack. Sunflower seeds are wrapped in a hard seed coat that can be black with cream-colored stripes or all black. Just like a coat protects you in bad weather, the seed coat protects the seed.

The seeds are planted in the soil in the spring, when the weather is warm. And you might have guessed that sunflowers like a lot of sun, too!

Second Stage: Germinating Seed

The seeds that were planted begin to germinate, or sprout, after five to twelve days. The seed coat gets soft in the moist soil, and just like you when the weather is warm, it doesn't need its coat anymore and breaks through it. The seed sends a root deep into the ground and a single stem up through the soil. That little stem with leaves is now a seedling.

Third Stage: Seedling

The seedling continues to grow as the weather gets warmer. The root that it sent into the ground continues to grow down, as deep as six feet, to help keep the sunflower plant in the ground. The root acts like a boat anchor as the sunflower gets bigger and heavier. It will also send out new roots to get water and nutrition from the soil.

The hollow stem continues to grow and develop more leaves. After about thirty days, the beginning of the plant's flower bud appears, and the stem gets harder and thicker.

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