Manual labor may be needed to separate the mint leaves and prepare the product for market. This plant, native to North America, appears to have a strong demand in recent years for medicinal purposes. There are two main species used. The Echinacea purpurea and the Echinacea angustifolia. The whole tops, but particularly the roots, are the product of commerce.
Roots are ready for harvest when they are about three years old.
Although seeds can be sown directly in the field, starting the plants in the greenhouse and transplanting them out in the field appear to be more desirable. The annual variety or German chamomile appears to be the one commonly sold and used. The dried flower is used for teas or extracted for its essential oil. It is adapted to all parts of Alberta and can be started by seed directly in the field. Seeding should be very shallow for successful establishment.