Begonias are annual flowers native to South and Central America. Of the different species of begonias, most have their own color and shape. What they have in common is where they store their seeds. Begonias have flower pods that fall off and spread their seeds when the plant dies. Because all of the seeds are in one spot, they are easy to harvest. Wait for the flower stem to begin drying out, typically in mid-fall for a healthy begonia
Cut out the flower pods with a pair of sharp scissors. The flower pods are located in the center of the bloom.
Place the flower pods in a large envelope for one to two weeks, or until dry. Make sure the envelope is large enough that it doesn't flatten the pods.
Remove the pods once they are dry, and put them on a paper plate.
Pull the pods apart to remove the seeds. The seeds are tiny, cylindrical and a shade of red. Separate the seeds from all other plant material.
Place the seeds in a small paper envelope. Label the envelope with the date and the type of seeds. Store them in a cool, dry place until you are ready to use them.