An outdoor vegetable fence is a type of fence used in outdoor spaces, such as gardens or around properties, where plants or trees are planted to form a natural barrier instead of using traditional fences made of solid materials such as iron or wood. It can be used to achieve several goals such as providing privacy, wind protection, improving the aesthetic appearance of a space, or even as an acoustic barrier.

External plant fences provide a natural and aesthetically pleasing landscape, and contribute to improving the environment by providing shade, reducing pollution, and improving air quality.