Flower boxes add a fresh burst of color and aroma, increasing visual interest and appeal. Make flower boxes to suit your requirements and place them anywhere for a natural decoration. Although you can use a variety of materials to make the box, such as ceramic, wood, heavy plastic or metal, wood is generally preferred for its manageability, even for a novice gardener, and natural look.
Select and measure the desired location for your flower box to determine its size and shape. Most flower boxes are rectangular or square. Make it as high as you want, or add four blocks under it to raise off the ground so it requires less bending to maintain. Do not make it wider than 3 feet so you can reach the flowers planted in the center.
Purchase good quality boards from a hardware store. They should be at least an inch thick so they can hold the weight of the soil. You will need five boards per flower box--two identical lengths for the front and back, two identical pieces for the short sides, and a base board the length of the front and back and as wide as the sides. If you are cutting the boards yourself, mark the appropriate measurements on the board and cut carefully over the lines with a handsaw.
Hold the front piece on an even surface. Place a short side board against the edge of the front piece, making the joint flush and even. Drill galvanized woodscrews where they join, one screw near the top edge and the other near the bottom edge. Your boards, when joined, will form an L-shape. Repeat the procedure to connect the other short end to the back piece.
Hold both the L-shaped pieces in such a way that the long side of one rests against the short end of another. Position them so both joints are even and flush, and drill galvanized wood screws at each end. Lift the baseless box to check its stability, and drill another galvanized woodscrew in any joint to reinforce it.
Turn the flower box around so its base-side faces up, and lower the base piece over it carefully. Check that it rests evenly over all the edges before drilling it into place with woodscrews.
Smooth out the surface of the flower box with medium-grit sandpaper. Paint it a bright color so it stands out against the landscape, or add a coat of clear paint for a natural look. Allow the paint to dry thoroughly before placing it in its designated spot.