Sketch out your hexagon flower garden frame on a piece of paper. Use a ruler or measuring tape to label the dimensions of each side. Sketching out your flower garden before hand will help keep you organized before the actual project begins. Use your sketch as a guide when you are ready to cut each piece of your hexagon.
Measure and cut six boards the same length according to your plan. Use a miter saw to cut a 30-degree taper on each end of all six boards. The angle cuts will allow you to create an attractive six-sided wooden flower garden frame.
Place the ends of two boards together and pre-drill three screw holes through one side with an electric drill. Fasten each joint together with three 3-inch wood screws. Repeat for each of the six angled joints.
Move the wooden flower garden frame into place. Depending on the size, you may need help from one or more people to lift and move it. The ground underneath the wooden hexagon frame should be bare, level soil.
Fill the frame with a mixture of native soil and composted organic materials. Plant flower seeds or flower starts in the soil and water.