When should I insert wormwood in Dragon Boat Festival?

Inserting mugwort leaves in the morning of Dragon Boat Festival is mainly to ward off evil spirits and drive malaria. In fact, there is no special statement about whether wormwood is inserted in the morning or at night during the Dragon Boat Festival. It's only a matter of time. That is, most people plug in electricity in the morning.

Wormwood is a perennial herb with alternate leaves, deep pinnate, green surface, thick white hairs on the leaves and special fragrance on the stems and leaves. In ancient China, wormwood was used as medicine. The moxibustion method of acupuncture was to put wormwood on the acupoint and cauterize it to treat diseases. (Solemnly: The answers are for reference only, please don't be blindly superstitious).