I use the drying setting of my convection oven set at 120F with the door propped slightly. Once dry from the oven heat, leave the flowers on the tray overnight on the counter to make sure the blossoms are completely dry. Store the dried flowers in a paper bag or box. When you want to make potpourri, simple take a few cups of flowers and sprinkle on a little essential oil, mixing well with your hands. Once the oils have been added, store the potpourri in a plastic zip lock bag or container with a lid. Small amounts of potpourri can be placed in little dishes, teacups, saucers and left out in different rooms of your home for a fresh floral scent ... even in the winter.
How to dry flowers in the oven.
How to dry flowers by hanging