How Plants Make Seeds
Plants reproduce by making seeds, which are like tiny packages containing a baby plant and food to help it grow. Before seeds form, most plants grow flowers. Inside flowers are special parts: the stamen (the male part that makes pollen) and the pistil (the female part). When pollen from one flower reaches another flower's pistil, something magical happens called pollination. This is how plants make babies!
Think of it like delivering a love letter. Pollen is the letter, and it needs to travel from one flower to another for the flower to make seeds.
Why Plants Need to Spread Seeds
Plants cannot walk around like animals, so they cannot travel to find new places to grow. If all the seeds grew right next to the parent plant, they would compete for water, sunlight, and nutrients. By spreading seeds far away, plants ensure their offspring have the best chance of surviving. Plants have evolved amazing ways to scatter their seeds across the world.
Four Main Ways Seeds Travel
Wind dispersal is used by many plants. Seeds from dandelions, maple trees, and pine cones have special wings or fluffy parachutes that catch the breeze and float far distances. Some seeds can travel hundreds of kilometres!
Water dispersal helps seeds from plants living near rivers and oceans. Coconut seeds have waterproof husks and can float in saltwater for months, washing up on distant beaches. These seeds survive the journey and sprout in their new home.
Animal dispersal is incredibly clever. Many plants make tasty fruits and berries that animals love to eat. The seeds inside pass through the animal's digestive system and are deposited far away in the animal's droppings. Birds eat seeds from holly bushes and drop them across gardens and forests.
Think of it like a restaurant delivery service. The animal eats the fruit, and the seed gets delivered to a new location in the animal's poop!
Some plants use explosive dispersal. When a seed pod dries out, it splits open suddenly, flinging seeds in all directions like tiny catapults.
From Seed to Plant
Once a seed lands in the right conditions—with enough water, warmth, and oxygen—it germinates and grows into a seedling. This seedling develops roots and shoots, eventually becoming an adult plant that will make its own flowers and seeds, continuing the cycle.