Run a duster over the silk and artificial flowers to remove any loose dirt and dust.
Place the silk and artificial flowers into a plastic or paper bag. Pour in 1/2 cup of salt.
Shake the bag gently for two to three minutes.
Remove the silk and artificial flowers from the bag and shake off any salt.
Replace the silk and artificial flowers.
Fill a sink with cool water and mix in 1 tsp. mild liquid soap with your hand.
Lay a dry towel near the sink to place the clean flowers on.
Remove one flower at a time from the arrangement. Gently swish the flower in the soapy water.
Set the wet flower on the towel. Lay another dry towel on top of the flower and gently press down to absorb any excess water.
Replace the silk or artificial flower. Repeat the cleaning process one flower at a time until all of the flowers are clean.