Marigold Seed Harvest

Time of Year

• In some regions, marigolds bloom from late spring through early fall. However, summer is when they bloom most prolifically in most areas. To keep the flowers blooming during the summer, pluck off the flower heads when they wilt. In late summer, stop plucking the dying flower heads and let them go to seed. You can continue harvesting the seed heads until the first frost or until the plant stops producing seeds.

Harvesting

• After the bloom fades, the marigold's seed pod develops. Looking closely, you'll notice a green capsule where the flower once was. Inside this capsule are the immature seeds. If you harvest the seed pod at this stage, the seeds won't sprout next year because they haven't stored enough energy for development. Leave the seed pod on the stem until it starts to turn brown and is slightly open. You should be able to pluck the seed head without tugging.

Drying

• Although the seed heads are no longer green, they still contain some moisture. If stored without drying, the seeds could turn moldy and will have to be discarded. On a flat surface in a dry room, spread out a couple layers of newspaper. Pull the seeds from the seed pods, and sprinkle them evenly over the newspaper. Let them dry for three or four days.

Storing

• Once dry, place your marigold seeds in a jar or plastic bag. Label the container with "Marigold" and the year. Store the container in a dark, dry and cool area. Check the jar or bag now and then for any signs of mold. If you see any mold, discard the seeds. To avoid losing all your seeds to mold, don't put your entire harvest into one container.