On Dragon Boat Festival, besides eating zongzi, you can also prepare a bunch of wormwood to hang at the door. In addition to the beautiful meaning of blessing, it also has the effect of insect repellent.
Folium Artemisiae Argyi and Acorus calamus are the protagonists of the Dragon Boat Festival design. Dragon Boat Festival has the cultural connotation of exorcising evil spirits and praying for good luck, while Artemisia argyi stands for "expelling mosquitoes, exorcising evil spirits and praying for good luck". The leaf shape of Acorus calamus is like a water sword, which has the meaning of "killing thousands of evil spirits" since ancient times.