Rocky Hill Landscaping
 Call us at: 207-645-5381

The extraordinary earthworm has been one of nature’s greatest producers of all natural plant food. Earthworm castings are an excellent, all purpose, organic fertilizer used to supplement your soil. Our castings have been lab tested to ensure the beneficial microbes and nutrients essential for optimum plant growth are provided. By slowly releasing these nutrients our castings help boost production rates safely without the harsh chemicals and processing of inorganic fertilizers.  

At Earth Keeper Castings our goal is simple: feed the soil, nourish the plant, and save the Earth. With a renewable product born from our rigid dedication to quality, honesty, and an all natural chemical free manufacturing, your satisfaction is guaranteed. In our facility an estimated 750,000 African Earth Worms are hard at work digesting a special diet blend of organic shellfish compost and peat moss developed by our own certified master gardener to bring you our 100% all natural castings straight from the worm’s belly to your garden.
Earth Keeper's Castings - Nature's Perfect Soil Enhancement
100% Pure Earthworm Castings
ALL NATURAL: Our worms are fed an organic diet developed by our certified master gardener to guarantee an all natural chemical free product.

IMPROVES SOIL: Increases soil’s structure, aeration, and ability to hold water promoting deeper growing and healthier roots.

SAFE FOR ALL PLANT USE: Our safe long lasting nutrient rich product will not burn your plants.  

FOR INDOOR AND OUTDOOR USE: Use our odor free castings to enhance your growing experience both indoors and out.


Check out this video of our manufacturing process! We have a team of worms and employees working hard to bring you the best castings nature can offer! Along with our handy virtual tours, we also give educational tours of our warehouse. Send us an email to set up an appointment!
Retail Locations

Homegrown Connection: 407 Wilton Rd. Farmington, ME (207) 778-4736


Full Bloom Hydroponics:502 Wilton Rd. Farmington, ME (207) 860-2808


Tractor Supply: 979 US Rt.2 Wilton, ME (207) 778-5900


Wilton Hardware: 343 Main Street Wilton, ME (207) 645-6400

Paris Farmers Union:  All Locations : Bridgton, Jay, Newport, Lewiston, Portand. South Paris, Turner, Winthrop