Osmanthus fragrans is considered as a natural air freshener because of its fragrance. In Feng Shui, Sophora japonica is regarded as the tree of town house because it is a symbol of "Fulu". Begonia flowers are beautiful, natural and precious, and are also regarded as rich flowers in front of the hall in geomantic omen. Haitang is also a metaphor for women, so if the children at home are girls, plant several Haitang plants next to the house. When the child grows up, he is likely to be rich or expensive. The leaves and fruits of citrus have certain medicinal functions, and the homonym "Ji" of orange in geomantic omen is considered as an auspicious and complete tree.