Note If you don’t have access to a garden hose, or if you live in a condo or an apartment, follow these same steps using your shower head and let your silk plants drip dry in the tub. Enjoy your clean and fresh tree or plant design that should look as good as the day you bought it..Silk plants look like the real thing without the continual watering and care required by growing plants. Neglect is an issue with silk plants too, however if they aren’t dusted on a regular basis, the dirt builds up and becomes harder to remove. Simple cleaning methods and a homemade vinegar based cleaner turn those dusty gray plants green once again..Well, silk flowers can be treated the same way we would clean a silk plant. In my worldly travels I’ve heard of the salt cleaning technique. Basi.y, it works by adding artificial flowers to a bag filled with table salt perhaps a cup of it and to clean the flowers, one simply shakes the bag closed and let the salt shake the dust off the flowers..How to Clean Silk Flowers. Silk flowers and other types of artificial blooms and greenery can enhance the look and feel of a room. Like other accessories, there is a need to clean silk arrangements from time to time in order to keep them .