Dust has accumulated on the foliage of my houseplants. How can I clean the plants?

FAQ
Question: 

Dust has accumulated on the foliage of my houseplants. How can I clean the plants?

Answer: 

Cleaning houseplants improves their appearance, stimulates growth, and may help control insects and mites.  Large-leaved plants may be cleaned with a mild dishwashing soap solution (add a few drops of dishwashing soap to lukewarm water) and a soft sponge or cloth.  Plants can also be cleaned by placing them in the sink or shower and gently spraying with lukewarm water.  Be sure to adjust the pressure and water temperature before spraying the plants.  African violets and other fuzzy-leaved plants can be cleaned with a damp, soft cloth or soft-bristled brush.  

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