Marigold is a highly productive plant that can be continuously harvested throughout the summer and well into the fall, and frequent harvesting ensures an abundant yield. Wait to harvest Marigolds until they have attained full size and have fully opened. When harvesting, make sure to grab them from the base of the flower; the flower should come off easy and shouldn’t require additional tools.
Once harvested make sure to either completely dry in a dehydrator to preserve the flower, or hang in a non-humid cool place to dry. This will prevent the flowers from molding.