First of all, a land of geomantic omen is bound to be very beneficial to the growth of plants. The simple way for people to check whether a place is a treasure trove of geomantic omen is to break a living branch and stick it in the ground, and then check it the next day. If the leaves have not withered, it is a land of feng shui. It can be seen that the land of feng shui is conducive to the growth of plants.
Secondly, the vegetation of the grave should be cleaned up, so there is the custom of sweeping the grave in Qingming. The purpose is to clean the hay and trees around the grave and prevent the teeth of trees from biting into the grave.
Thirdly, unless it is a cement grave, if it is an earth grave, vegetation will not grow for many years, but it is not a place with good feng shui.
Therefore, whatever vegetation grows on the grave is good, but it should be cleaned in time to prevent it from growing.