Pick the flowers in the middle of the day when they are dry. Remove extra leaves from the flowers and cut the stems to the desired length.
Tie small bunches of the picked flowers together with string or a rubber band.
Hang the flowers in a dark, dry area such as a closet or shed. The flowers should hang for two to three weeks until completely dry, which will be when the stems snap easily.
Remove all leaves from the stems of the cut flowers. Flowers should be buried in silica gel, which can be purchased at a garden center or flower shop.
Bury the flowers in a closed container and leave for three weeks. It is only necessary to cover the flowers in the mixture; the stems will dry over time.
Remove flowers carefully from the silica gel and shake gently to clean. Save the silica gel as it can be used over and over by drying the gel in a warm oven.
Place the flowers in a microwave-safe dish and surround with silica gel. This is needed to help the flowers keep their shape.
Set the timer for three minutes for heavier flowers and one minute for lighter, thinner-petaled flowers. Microwave temperatures will vary so check flowers for dryness after one minute on high.
Remove container from the microwave and let the flowers cool for 24 hours. Remove dried flowers from silica gel and gently shake to clean.