This flower has anti-inflammatory properties and triterpenoid compounds, which inhibit bacteria. Calendula also has antispasmodic, astringent, antiseptic and detoxifying properties. Ingested, it helps stomach ailments such as gastritis, peptic ulcers, regional ileitis and colitis. It can also be extremely cleansing for the liver. You can use the flowers in tea, oil infusions, or in salves to help with internal and external ailments. Growing tips from staff horticulturalist Blake Burger: Calendula can be started indoors in the spring rather easily. Start inside 6 weeks before last frost and make sure to provide a sunny location for the seedlings to thrive. Plant in full sun after the danger of frost has subsided. To encourage growth throughout the season, fertilize and deadhead.