SVATV Marigold is also known by the names Pot Marigold, Mary Bud, Calendula, Mary Gowles, Holigold, and Golds. Marigold grows as a common garden plant throughout North America and Europe. The golden-orange or yellow flowers of Marigold have been used for centuries. The part of this plant used are the flowers. - Marigold flowers were believed to be useful in reducing inflammation, wound repairing, and as an cleansing. Historically, Marigold was used to help support various skin problems, ranging from skin skin irritations to skin irritations.