Cut flower and leaf. Circulatory and especially cardiac tonic. Regulator of blood pressure (compensatory). Slightly sedative. Recommended method of use for infusions: Pour the contents of a tablespoon into boiling water and remove from heat. Cover the container and let it sit for 8 to 10 minutes. If they are roots, bark, or seeds, simmer for 2 to 4 minutes. Strain and sweeten to taste.