It is better to plant trees that are evergreen all year round and have strong vitality, such as pine, cypress, camphor, and magnolia. You can also plant some trees that bloom first before and after Qingming Festival, such as Yingchun, Hibiscus, magnolia, etc. are all suitable. The tree should not be facing the front door of your home, nor should it be too close, nor in the northeast or southwest... As for the number, it should not be too many...