Try these proven methods to deter crime and maintain a safe haven. Create a shady meeting area in the garden, and encourage people to use it. Keep your garden neat, friendly, well-peopled. Make a sign for the garden. Let the community know to whom the garden belongs and that it is a neighborhood project.
Fences can be of almost any material.
They serve as much to mark possession of a property as to prevent entry. Don't exclude people. Welcome everyone in the community to participate. Harvest all ripe fruit and vegetables on a daily basis. Ripe, red tomatoes falling from the vines solicit trouble.