The calendula (Calendula officinalis) blossoms have been collected on a sunny summer day from the edge of a field at Tormikadakas farm in Pärnumaa, where they reseed themselves annually and grow in clean soil. The flowers have been naturally dried and airtight packaged.
How calendula tea is used in folk medicine can be quickly found by doing internet searches. Drinking calendula tea takes you back to a time when the flowers are brighter than the sun, and the summer is still in full swing.