Diatomaceous Earth

Garden Harvest Supply is your answer for where to buy Diatomaceous Earth. We were one of the earliest websites to offer Food Grade Diatomaceous Earth for sale. We only sell Food Grade DE, which is safe for use around your garden, your pets, your food and your family.


We carry a size for every need and application, and there are countless uses for this natural insecticide and pesticide. Diatomaceous Earth is the fossilized remains of microscopic water creatures. It works organically as rough outer surfaces lacerate the soft outer surfaces of pests, causing them to dehydrate and die. A little goes a long, long way.


We make it easy for you to buy Food Grade Diatomaceous Earth from GHS because we offer a 100% money-back satisfaction guarantee. If our DE doesn't live up to your expectations, we'll gladly buy it back. We're sure you'll be happy with our Food Grade Diatomaceous Earth because it's one of our best-selling products—and it's really effective!

Show product details for Food-Grade Diatomaceous Earth - 5lb Bag

Food-Grade Diatomaceous Earth - 5lb Bag

Price $11.00

List Price: $13.95

You Save: $2.95 (21%)

Diatomaceous Earth Food-Grade by Perma-Guard™ is Mother Nature’s product and is safe for the environment, pets, and people. Commonly called Fossil Shell Flour, it is used as an organic insecticide, pesticide, as an internal wormer, for parasite removal in both humans and animals, and for many other uses.

Show product details for Diatomaceous Earth, Food Grade—50-lb. Bag

Diatomaceous Earth, Food Grade—50-lb. Bag

Price $55.00

Perma-Guard Diatomaceous Earth, Food Grade—50-lb. Bag

Show product details for Diatomaceous Earth, Food Grade — 1-lb. Bag

Diatomaceous Earth, Food Grade — 1-lb. Bag

Price $4.50

Now you can get Perma-Guard Diatomaceous Earth Food Grade in a convenient 1-lb bag.

Show product details for Diatomaceous Earth, Food Grade—6-oz. Bottle

Diatomaceous Earth, Food Grade—6-oz. Bottle

Price $3.75

Now you can get Perma-Guard Diatomaceous Earth Food Grade in a convenient bottle. This bottle holds 6-ounces of DE. If purchasing just one bottle, choose First Class Mail for cheaper shipping.