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Botany Ecology

How does pollination work? A step-by-step guide to pollination and the plant life cycle

You might already know that pollination is the transfer of pollen from the stamen to the carpel of a flowering plant. In this post, we will take a closer look at the steps of animal pollination and the plant life cycle. The relationship between a pollinator and a plant is key to the survival of both species.

In this post, we will take a closer look at the steps of animal pollination and the plant life cycle. You might already know that pollination is the transfer of pollen from the stamen to the carpel of a flowering plant (psst – brush up on your plant anatomy by reading my flower anatomy post or checking out my Flowers Unit!). Once pollinated, the plant forms a fruit. Fruits contain seeds, which will grow into the next generation of plants.

A variety of animals can be pollinators, such as bees, butterflies, and many others that may surprise you. The relationship between a pollinator and a plant is key to the survival of both species. This relationship is so important to both the plant and the pollinator that it influences how they evolve. In other words, plants and pollinators coevolved. Plant species developed traits to help them attract pollinators, such as brightly colored petals, sweet nectars, and strong scents. As pollinator species grew reliant on nectar as a food source, they developed body parts and habits for collecting flower nectar more efficiently.

Before we dive in: If you’re an educator planning to teach pollination in your classroom, great activities are key to deepening understanding! I think you and your students will love my Pollination Unit, which is also found within my Botany Collection (plus you’ll support my blog with your purchase! ❤️)

Now, let’s take a look at the steps of pollination and the plant life cycle!

Step 1: Attracting pollinators

A flower attracts a pollinator with fragrances, nectar, and brightly-colored petals. Pollen from the flower’s stamen attaches to the pollinator.

A pollinator visiting a flower.

Step 2: Pollen transfer

The pollinator travels to another flower of the same species.

A pollinator traveling between flowers of the same species.

Step 3: Pollination

The pollinator tracks pollen from the first flower onto the stigma (tip) of the second flower’s carpel. Pollen travels via the style to the flower’s ovary.

The pollinator transfers the pollen to a second flower.

Step 4: Fruit growth

 After receiving pollen, a fruit or seed pod begins to grow from the ovary of the flower. Many of the flower parts wilt and fall off as the fruit/seed pod grows.

A fruit starts to form from the flower’s ovary.

Step 5: Seed dispersal

The seed pod or fruit develops. Once the fruit is ripe, the plant must disperse its seeds. At this point, some plants rely on another animal (separate from the pollinator) to help with seed dispersal. After the animal eats the fruit, it travels away from the parent plant and deposits the seeds in its scat. However, many plants do not rely on animals for seed dispersal. Alternative methods for seed dispersal utilize forces such as wind, water, and gravity.

Almost ready for seed dispersal.

Step 6: Germination and growth

After seed dispersal, seeds will germinate (or sprout) into tiny plants. The luckiest of the tiny plants will grow and reach maturity. Once mature, the plants make flowers of their own to attract pollinators, and the cycle begins again!

Germination process.

Teaching Pollination and Plant Life Cycles

Are you teaching pollination in your classroom? Here are some additional activity ideas and resources!

1. Try my free pollinator guessing game in your classroom:

Directions and cards for a pollinator guessing game are available on the free resources page of my website. My email subscribers gain access to the free resources page (plus receive my newsletters with new activity ideas, project guides, and science teaching inspiration!).

2. Read my post about weird and wild pollinators!

3. Check out my list of pollinator activity ideas for classrooms!

4. Try the flower anatomy activity in this blog post:

5. Study pollination with Wild Earth Lab!

Your students will love my Pollination Unit and other science units! I created this set of printable pollination learning materials and it is packed with activities and information, as well as my pollination artwork!


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