1. The best time for picking mugwort is late spring and early summer, and the most mature period is May of the lunar calendar.

2. Both Artemisia argyi and Artemisia argyi belong to Compositae. When picking mugwort leaves, we must pay attention to the picking time and grasp the time. If picked early, the corresponding medicinal properties will be lost. If it is picked absolutely late, its medicinal components are likely to be lost and its efficacy is likely to be weakened.