Garden boxes come in all sizes, shapes and materials. Sometimes people convert objects such as drawers or crates into garden boxes that they want to hang in a safe and attractive way. You can support garden boxes with a wide variety of brackets, shelf hangers, hooks, baskets and other support frames that are designed to easily screw into vertical surfaces. Often it is difficult to choose among the many options because they are very attractive.
Fill your garden box with the soil and flowers you want to use. Water the box. Weigh the wet box to determine how much weight the bracket or support will need to carry for your box to be secure.
Choose the bracket, hook, hanger, basket or other support that you prefer for your application. Check to see how many brackets you need to support the weight of your garden box. When attaching directly to a sturdy fence the wood screws that come as part of the hardware package should work fine.
Locate studs with an electric stud finder when installing garden boxes on the outside of a home. At least one bracket should mount to the stud and all other brackets should be supported with appropriate wall anchors for the weight and style of the installation. Use screws to attach the brackets to the stud or anchor and check to make sure they are level. Some installations may require exterior grade bolts.
Mount the garden box to the bracket using exterior wood screws through the bottom of the box. Some boxes are supported with baskets or hooks and may not require screws to hold them in place.