First, cut out 3 different sizes of petals to use as your stencils. Cut the large one from a 2 inch by 2 inch square, and make each of the next 2 a little bit smaller. I have included a copy of the stencils I used. You want to be careful when tracing and cutting, but at the same time remember that in nature every petal is slightly different from each other.

                     

Now, using a hot glue gun, put a dab of glue at the end of each petal, and pinch it together until it dries.

             

Cut out a felt circle. Mine was about 3.25 inches in diameter.

Start gluing the outside ring of petals first. Lay them out before you glue them down to make sure that you know where they will all go. I used 12 petals for the outside ring.

                                    

Continue on with the next ring. I used 10 petals.

                               

Now glue down the inner ring. I used 8 petals.

                           

There are a lot of fun things to do with the center. You could use a little felt rose. I wanted to make it look a little bit like the center in the photograph of the dahlia above.

                     

Cut a thin strip of felt about 1 inch wide and about 8 inches long. Cut lines about 1/4 inch apart all along the strip. Do not cut through the edge {although if you do it will be easy to attach in the next step}. Start rolling the strip from one end, adding a little glue here and there as you go. Glue the end shut and then glue this little flower into the center of the dahlia. The final flower ends out being just under 6 inches wide.