1. Wild cassia seed can drive away snakes, which is also called snake killing gate, because when it blooms, the plants themselves will have a strong smell, which is normal for humans to smell, but the snakes will run away after smelling it.

2. Especially in the season when snakes frequently appear, that is, June 6- 10/October, people will pick wild cassia seeds and hang them near the courtyard, so that poisonous snakes will not enter the courtyard at will.