梧: The phoenix tree, also known as the green parasol tree, symbolizes prosperity and auspiciousness. The "Wu" in its name conveys the idea that having a phoenix tree at home will attract the golden phoenix, a sign of wealth, good fortune, and a bright future.

榆: The elm tree, with its evergreen foliage, stands tall and straight, embodying the spirit of unwavering resolve and robust vitality. Its seeds and flour are cherished in Chinese culture, symbolizing strength and prosperity.