1. From the perspective of geomantic omen, gardenia can't be planted at the door and other places, because from the perspective of geomantic omen, gardenia belongs to yin flowers, and it is easy to affect the yang at home. And considering that planting gardenia here will affect the health of family members, it is not recommended to plant gardenia here.

In addition, the flowers of gardenia are white, which not only symbolizes purity, but also means unlucky. It is often used in funerals or mourning for the dead, so many people say that gardenia is unlucky, not the gardenia itself, but the color of gardenia.