Raised Garden Bed Construction: If using timber, ensure that it is an untreated hardwood to prevent the risk of chemicals leaching into the soil. Pine that was treated using chromated copper arsenate, or CCA, contains a toxic chemical mix for preserving timber which can be drawn up into the plants and eat part or all of the plant. A common approach is to use timber sleepers joined with steel rods to hold them together.
Gather multiple potted plants to create the splendor of an in-ground border in a spot where gardening is otherwise impossible. Using containers, you can fill a space with beautiful color and texture that rivals earthbound planting beds.