What Is Inside a Seed

A seed is a tiny survival package that holds everything needed to grow a new plant. Seeds help plants spread to new places and survive through seasons when growing conditions are difficult.

Inside every seed are three important parts. The first part is the embryo, which is the baby plant waiting to grow. The embryo has the beginnings of roots, a stem, and leaves all folded up in a very small space. The second part is stored food, which surrounds the embryo like a lunch box packed with energy. This stored food gives the baby plant the nutrients it needs to start growing before it can make its own food through its leaves. The third part is the seed coat, which is the tough outer covering that protects the embryo and stored food from damage, insects, and drying out.

When conditions are just right—with enough water, warmth, and soil—the seed begins a process called germination. The seed coat softens and splits open. The embryo uses the stored food for energy to push roots down into the soil and a stem up toward the sunlight. Think of it like a packed suitcase that contains everything a traveler needs for a journey. The seed is packed with everything the baby plant needs to begin its life.

Interesting Fact: Some seeds can survive for hundreds of years! Scientists successfully grew a plant from a 2,000-year-old seed found in an ancient palace.