Sharp-leaved plants are mainly used to block evil spirits. The suffocation outside the house mainly comes from buildings, such as sharp corners. This kind of suffocation is called chicken mouth evil and can be blocked by plants. Or there is a gap between the two buildings, just facing the bedroom, which is called a penetrating evil spirit, and it can also be blocked by plants. Secondly, sharp-leaved plants can be used for road rushing and overpass fumigation.
China people have a soft spot for plants. Hanging a pair of flowering plant gourds on the balcony or the roof of a shop can not only solve all kinds of suffocation indoors and outdoors, but also play an auspicious and safe role.