To determine how much fabric you will need to measure your waist size at the spot you plan to wear your skirt. For a gathered skirt like this I would say to go around 1 and half your waist size. For example if your waist was 20″ you would want about 30 inches of fabric for the skirt and an additional 10 inches of fabric to use for your pockets. I bought 2 yards in a 56″ wide fabric for the skirt and 1/4 yard of a black knit to make the waist band and I had a decent piece of the floral print left over.
If you want pockets on your skirt you will need to have a front piece and a back piece to your skirt with seams along both sides, so divide your fabric in half and cut along the long side. You should now have a front piece and a back piece to your skirt both the same exact size.
To make pockets I simply trace a generous line around the shape of my hand. Don’t trace too closely or you will end up with a very tiny pocket that your hand barely fits in once you add your seam.
If your fabric has a right and wrong side make sure that all of your seam allowances are facing the wrong side of your fabric (non printed side). My fabric was the exact same on both sides so I just made sure that all of my seams were facing out the same direction when I sewed my pockets on. You should have 2 pieces that look like this when laid on top of one another.
A little trick I have learned is that if you very gently hold the top thread while sewing on the loosest stitch is that it will gather your fabric for you as you go. Do this part slowly. If you pull too tightly your thread will break. If that happens simply pull out a few inches of thread and start again where you left off.
After I sewed it together I folded it in half with my seam on the inside.
My skirt is now gathered from when I sewed it but it needed to be gathered a little bit more to match up to the black waist band before I sew them together.
You should have some longer threads hanging from your loose stitch at the top of your skirt. Hold one thread between your fingers and pull gently while your opposite hand pushes the fabric down the thread. Do this slowly also or your thread may break and let our all of the fabric you have gathered.
Continue gathering until your skirt matches up with your waist band in size.
Now flip your waist band inside of your skirt while your skirt is inside out. It will look like 3 layers. Two layers of your waist band and one layer of your skirt on the outside.
Now sew all three layers together. You can sew this part with a zig zag stitch so that the stitch with stretch a little as you pull it on and off. After you finish sewing you can flip the waist band back up and it will look like this while inside out.
Here it is right side out. The black looks uneven but it is just the way the fabric is laying. Depending on your height and how long you want your skirt to be you can just fold the bottom under twice, pin and hem or trim off a little fold under twice pin and hem. And you are done! I folded my waist band down once in the picture below.