Heirloom Seeds

Heirloom seeds are seeds that you collect from the plant that you grew from seeds that you got from the plant before that. So there was the grandparent and then the parent and now you have the seed.
Seeds grow into baby plants then the plant grows up and has a flower which is pollinated by a bee. The flower turns into fruit and then seeds grown inside the fruit. Those seeds can be used to grow new plants.