A defensive hedge is an impenetrable plant barrier to prevent intrusions by wild animals. A natural hedge can be installed at the edge of a garden without disfiguring it.

It is recommended to prune each shrub by a third of its height, every six months to a year, for three years. The list of plants is wide enough to obtain a defensive hedge which will be in line with the other plants which adorn the garden. The most common are: Holly, Hawthorn, pyracantha, rhododendron, and bromeliad.