National Diatomaceous Earth Day

National Diatomaceous Earth Day is dedicated to raising awareness of diatomaceous earth, also known as diatomite or kieselguhr. Celebrated annually on August 31, this day highlights the diverse uses of this unique natural substance. Many people are familiar with diatomaceous earth as a natural insecticide or a filter for pool water, but it is also used in gardens to control pests. Diatomaceous earth is a white powder obtained from the fossilized remains of algae collected from dried river and lake beds. Besides being an effective pest control solution, it has additional benefits: it is used as a detoxifier, has antioxidant, antibacterial, antifungal, and antiparasitic properties, supports digestion, and may help lower cholesterol.

History

National Diatomaceous Earth Day was established in 2016 by EP Minerals to educate the public about the many advantages and applications of diatomaceous earth.

Interesting Facts

The largest diatomite deposits in the United States are located in northern Santa Barbara County, California.

How to Take Part

If you’d like to participate in National Diatomaceous Earth Day, here are some ideas:

1. Enjoy foods and beverages where diatomaceous earth is used as a filtering agent, such as sugar syrups, fruit juices, and wines.
2. Try a DIY project at home. Diatomaceous earth enhances the durability of paints, improves coating adhesion, and is used in various decorative applications.
3. Use diatomaceous earth in your garden as a natural insecticide to keep pests at bay, or as a soil additive for better aeration. It can also be sprinkled around the home to repel fleas, bedbugs, and ants. For pet owners, a small amount can be brushed onto your pet’s coat before a walk in wooded areas (be careful to avoid the nose, ears, and eyes).

When is National Diatomaceous Earth Day in 2025?

National Diatomaceous Earth Day is observed on August 31 each year.

Observations