Begonia can be used as a fence and must be made of wood. Common garden plants are papaya begonia and weeping begonia. Begonia generally requires a large crown, high trees and few roots, while begonia papaya is almost the opposite, suitable for close planting and more suitable for fences.
Begonia pictures
Papaya begonia
Tend to use papaya begonia
If you can accept this answer, please adopt it.