Life cycle of Plants

Plants are the living things, they grow and reproduce like any other living thing. They follow a cyclic process of starting a new life, growing, and then coming back to the starting stage (reproducing). Plants start their life from a seed and grow-up to become a mature plant.life-cycle-of-a-plant

Seed

Seeds are much like babies of the animals. Seeds contain the embryo of the plants with necessary food and an outer coating for protection. The seeds are dispersed across the land by many ways (river, air, animals, and humans). When they fall on the rich soil with necessary things, they germinate and start their life.

sunflower-seed

sunflower-seed

Germination and seedling

When the conditions in the soil are just right, the seed germinates. First, it breaks the outer coating and begins growing its first roots and leaves. When the first sign of life from a seed appears out of the soil, it is called seedling.

sunflower-seedling

Sunflower seedling

Growing to maturity

The seedling continues to grow to its full maturity. The plant needs many necessary things during its growth (see How plants grow). When plants become mature, they have to get stronger roots and an increased number of branches and leaves. At this stage, they are ready to make flowers and new seeds.

Flowering, pollinating and seeding

When plants become mature, they start to make flowers and pollen. When the pollen reaches the female part (ovary) of the flower, it fertilizes the cells inside it and produces seeds.

mature-sunflower-plants

Mature sunflower plants

Repeating the cycle

The newly produces seeds disperse across the land and begin their new life as a plant. This cycle of the plants is continued and new plants are produced.

What about Seedless Plants?

You may be thinking that all the plants are grown from a seed. But it is not true, many plants don’t produce the flowers and seeds to reproduce. Instead, they grow from the spores of their parent plants. Spores the part of the plants or their remaining. New plants are produced from the spores and continue to grow.

spores-of-fern

Spores of fern on its leaves

See Non-Flowering plants for further information

Interesting Facts

  • Great Basin bristlecone pine is the longest living plant found in the world. Its age is measured to be 5056 years old.
  • Coco de mer is the seed of a palm tree, it can weigh about 18 Kg (40 pounds) and can reach a height of 12 feet.
  • Rose, Jasmine, and Lily are the strongest smelling flowers.
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