Planters enhance the appearance of the exterior of a house, adding color and character to a bare wall. Fill your wall planters with a blend of tall and trailing flowers or foliage and install them outside a window, or over your entrance door. Not only do they dress up the spot with color and aroma, but add interest at varying eye levels. Rectangular and square wall planters made of different materials are available in home department stores. Install one yourself to save on excess costs.
Purchase a wall planter that complements the exterior of the house, and mounting hardware according to the surface of the wall. Buy lag shields for brick or wooden walls, and mounting screws for hollow block walls so they penetrate mortar.
Select a suitable window on a wall. Step back and visualize how a planter full of flowers or foliage will look when installed against it. Keep the mature size of the plants in mind, so there is no hindrance in their way. Measure the center of the window and mark it.
Move inside the room with the window you selected and place a magnetic or electronic stud finder against the wall to locate studs. Mark the stud locations, which are usually on each side of a window and the center, with a marker. Extend these marks to the windowsill so you can see them clearly from outside.
Step outside and lift the planter box against the wall, aligning it so its center is directly over the mark you made on the center of the sill. Extend the marked stud marks on each side of the window to the back of the planter. Check that the planter is in level with the frame by holding a carpenter's level horizontally against it. Lower the planter and place it on the ground.
Drill holes over the marks in the back of the planter. Make sure the drill bit is the same size as the lag bolts.
Lift the planter against the windowsill again, aligning its center over the center of the window. Insert a marker through the drilled holes in its back edge and extend it to the wall. These marks will rest directly on the marked stud locations.
Hold the planter firmly against the wall and place the drill bit into a hole on its edge, so it rests over a stud mark. Extend it so it penetrates the wall and the stud. Repeat the same procedure for the other edge. Insert a lag bolt into each hole and tighten it with a wrench so it holds the planter firmly in place.