Springtime Week

Life Cycle of Plants

Part of Springtime Week

Springtime has sprung! You might have noticed little green things poking through the ground. But what are they?

These are the shoots or seedlings of young plants ready to continue their life above ground! Many have been dormant in the ground all winter and are ready to come tur now that it is warmer. Springtime is also an excellent time to plant seeds that would not last the winter.

Seeds are kind of like eggs. They have all the information inside that the plant needs to grow and become a fully grown plant. Seeds need three main things to germinate or grow:

  • Water
  • Oxygen
  • Right temperature

Some seeds are also sensitive to light, but mainly, light is needed for plants that have already sprouted above ground.

Once the seed's outer shell breaks open, something called the radicle – basically a tiny root – shoots down into the soil to hold it in place. Then, the shoot – called a plumule – unfurls and pokes up through the soil, searching for light and air. Once it reaches the surface, leaves begin to sprout, called cotyledons. These leaves store up food for the plant and may start the process of photosynthesis – the process plants use to turn sunlight into energy.

As the stem grows taller, more leaves will grow, and many plants will produce a flower or fruit. This is where the seeds will grow and fertilise. There are a few different parts of the inside of a flower – the pistil and the stamen. The pistil carries pollen, and when it touches the stamen, seeds will begin to form in the ovary – or fruit. Then, they will fall to the ground to plant a new plant!

Try out the life cycle of a plant activity below!

The Life Cycle of Plants (BBC Bitesize)
The Life Cycle of Plants (BBC Bitesize)
Think plants don’t move? Think again! Watch this time-lapse of a kidney bean germinating, sprouting, and then dancing its way up, up, up!

This page is part of the Springtime Week information.

If you have enjoyed these activities please share them with your friends and family.