Wash Your Houseplants to Prevent Pest Problems

Dust and grime on houseplant leaves aren't just unsightly—they block sunlight, hinder transpiration, and attract spider mites and other pests. Regular cleaning keeps plants healthy and reduces infestations.

Why Wash Houseplants?

• Dust filters light, reducing photosynthesis.
• Clogged stomata impair gas exchange and transpiration.
• Grime provides shelter for pests like spider mites.

How to Clean Different Plants

• Smooth, large leaves: Wipe with a soft, damp cloth. Add a few drops of mild liquid dish soap (no degreaser) or insecticidal soap to the water.
• Many small leaves: Spray with lukewarm water in a sink or shower, or invert the plant (protect soil with foil) and swish in a tub of water.
• Fuzzy leaves (African violets, etc.): Avoid wetting foliage; use a soft brush to dust gently.

Always use lukewarm water—cold or hot shocks roots. Rinse off soap residue. Clean several times a year, or whenever dust accumulates.

Extra Prevention Tips

• Inspect plants thoroughly before bringing them indoors for winter.
• Keep neem oil or insecticidal soap on hand for quick treatment.
• Never use feather dusters—they transfer eggs and insects between plants.
• Check for pests every time you water; isolate and treat immediately.

Reader's Tip (Grace, Orlando, FL): When using dish soap, choose one without a degreaser—it damages the leaf cuticle. Wipe leaves with a soft cloth after washing. Soapy water also helps manage insects. Insecticidal soap works well too; follow label directions carefully—more isn't better and can burn plants.

Clean plants are healthy plants. A little regular washing goes a long way toward a thriving indoor garden.