Earth Science 12 lb. Earthworm Castings Garden Fertilizer
$21.99
Earth Science 12 lb. Earthworm Castings Garden Fertilizer
Online Only
Earth Science 12 lb. Earthworm Castings Garden Fertilizer
Item # 1100761
$21.99
Neighbor’s Club Members earn points with purchases.
Online Only
Earth Science 12 lb. Earthworm Castings Garden Fertilizer
Item # 1100761
$21.99
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 6/28/26.
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Earth Science Earthworm Castings are 100% vermicompost and never contain fillers of any kind. Worm castings are a natural fertilizer full of organic matter that feeds the beneficial microbes in your soil. Worm castings improve your soil structure so it can retain more water and nutrients, leading to healthier plants. Earthworm Castings can be worked into the soil at the time of planting or can be used as a top dressing for shrubs, flowers, raised gardens or potted plants. Earth Science Earthworm Castings can also be used to make compost tea or be added to compost piles.
Looking for more information on fertilizer? Check out our guide on how to read fertilizer numbers in the product documents section.
- 100% pure earthworm castings, no filler
- Can be used as a supplement on all types of plants, whether in the ground or in containers
- Improves soil structure to retain more water and nutrients
- Natural source of organic matter to feed microorganisms in the soil
- Can be used for compost tea and compost piles
- 12lb bag
| Brand | Earth Science |
|---|---|
| Country of Origin | Made in USA |
| Application Method | N/A |
| Compatible Seasons | Spring/Summer |
| Concentrated or Ready to Use | Ready to Use |
| Contact Or Systemic | N/A |
| Coverage Area | 0 N/A |
| Emergence | N/A |
| Features | Organic, Slow Time Release |
| Form | Granules |
| Longevity | 2-6 months |
| NPK Ratio | 0.5-0-0 |
| Organic | Yes |
| Package Quantity | 12 lb. |
| Package Size | 12 lb. |
| Product Height | 20.75 in. |
| Product Length | 9 in. |
| Product Weight | 12 lb. |
| Product Width | 4 in. |
| Warnings | None |
| Manufacturer Part Number | 11896-4 |
Start typing your question and we'll check if it was already asked and answered.
1 - 10 of 12 Questions
Newest questions
Q: What is the application rate?
a year ago1 Answer
- A: Hello, thank you for your question. Per the label: For Gardens, Flower Beds, Fruits, Trees and Shrubs: Spread 1/4 to 1/2 inch thick layer of Earthworm Castings directly around the plant and water. For best results, incorporate into the soil. Reapply every 3 months. For Potting Mix and Potted Plants Potting Mix: Blend 1 part Earthworm Castings to 4 parts soil. Potted Potted Plants: Add 1/8 to 1/4 inch Earthworm Castings to top of soil and water. Reapply every 4-6 months. For Compost Tea (Liquid Plant Food) Add 1 pound of Earthworm Castings to 5 gallons of chlorine-free water, soak overnight. Water plants with liquid. Evenly spread over soil For Compost Pile Spread a 1/8 to 1/4 inch thick layer of Earthworm Castings between each new layer of material to be composted.a year agoHelpful?
Q: Are their any chemicals in this soil? Is it safe for isopods. (Pets)
3 years ago1 Answer
- A: Earth Science Earthworm Castings contain no added chemicals. This product is 100% earthworm castings.3 years agoHelpful?
Q: Can I make worm casting tea with this?
3 years ago1 Answer
- A: Yes! You can make compost tea with Earth Science Earthworm Castings. Add 1 pound of earthworm castings to 5 gallons of chlorine-free water.3 years agoHelpful?
Q: Is it 100% worm castings or a blend?
5 years ago1 Answer
- A: It is 100% earthworm castings.5 years agoHelpful?
Q: Will worms develop from the castings if you have soil in a raised garden that has no worms in it already?
5 years ago1 Answer
- A: No, this product only contains earthworm manure. Though the castings may contain eggs they are typically not viable after the packaging/transportation process.5 years agoHelpful?
Q: I had a question about the color of your worm castings it looked more brown than the other brands I used in the past. The ones I used were more black like dirt.
5 years ago1 Answer
- A: Our Earth Science Earthworm Castings are very dark brown, almost black in color and very loose and soft. Please contact us at 877-405-5050 or customerservice@earthsciencegrowing.com. We would be glad to send a replacement.5 years agoHelpful?
Q: how many cubic feet are in the 12-lb bag?
5 years ago2 Answers
- A: Approximately 0.2 cubic feet.5 years agoHelpful?
Q: What types of food are these worms fed?
5 years ago2 Answers
- A: Earth Science Earthworm Castings are fed conventional (non-GMO) corn silage that is grown with organic fertilizer and without insecticides or herbicides. Please feel free to contact us at 877-405-5050 with any additional questions.5 years agoHelpful?
Q: Would this help amend clay soil for growing grass?
5 years ago1 Answer
- A: Thank you for your interest in Earth Science products! Yes, the earthworm casting will help amend clay soil. They add organic matter, which is generally good for all types of soil, from sandy soils to clay soils.5 years agoHelpful?
Q: Would this be recommended for pots, specifically, chestnut seedlings?
5 years ago1 Answer
- A: Captain Chestnuts, Absolutely! Earthworm Castings are an excellent soil supplement for plants and seedlings of any kind. They will significantly improve the soil structure in your pots by adding rich organic matter which will encourage root growth, increase water and nutrient holding capacity and improve overall plant vigor. Thanks for reaching out to us! Good luck! PS...I took a fascinating Forest Biology course at UGA under Dr. Scott Merkle that focused heavily on his work on restoration of the American Chestnut. Keep those chestnuts coming!5 years agoHelpful?
1 - 10 of 12 Questions
Q&As
Start typing your question and we'll check if it was already asked and answered.
1 - 10 of 12 Questions
Newest questions
Q: What is the application rate?
a year ago1 Answer
- A: Hello, thank you for your question. Per the label: For Gardens, Flower Beds, Fruits, Trees and Shrubs: Spread 1/4 to 1/2 inch thick layer of Earthworm Castings directly around the plant and water. For best results, incorporate into the soil. Reapply every 3 months. For Potting Mix and Potted Plants Potting Mix: Blend 1 part Earthworm Castings to 4 parts soil. Potted Potted Plants: Add 1/8 to 1/4 inch Earthworm Castings to top of soil and water. Reapply every 4-6 months. For Compost Tea (Liquid Plant Food) Add 1 pound of Earthworm Castings to 5 gallons of chlorine-free water, soak overnight. Water plants with liquid. Evenly spread over soil For Compost Pile Spread a 1/8 to 1/4 inch thick layer of Earthworm Castings between each new layer of material to be composted.a year agoHelpful?
Q: Are their any chemicals in this soil? Is it safe for isopods. (Pets)
3 years ago1 Answer
- A: Earth Science Earthworm Castings contain no added chemicals. This product is 100% earthworm castings.3 years agoHelpful?
Q: Can I make worm casting tea with this?
3 years ago1 Answer
- A: Yes! You can make compost tea with Earth Science Earthworm Castings. Add 1 pound of earthworm castings to 5 gallons of chlorine-free water.3 years agoHelpful?
Q: Is it 100% worm castings or a blend?
5 years ago1 Answer
- A: It is 100% earthworm castings.5 years agoHelpful?
Q: Will worms develop from the castings if you have soil in a raised garden that has no worms in it already?
5 years ago1 Answer
- A: No, this product only contains earthworm manure. Though the castings may contain eggs they are typically not viable after the packaging/transportation process.5 years agoHelpful?
Q: I had a question about the color of your worm castings it looked more brown than the other brands I used in the past. The ones I used were more black like dirt.
5 years ago1 Answer
- A: Our Earth Science Earthworm Castings are very dark brown, almost black in color and very loose and soft. Please contact us at 877-405-5050 or customerservice@earthsciencegrowing.com. We would be glad to send a replacement.5 years agoHelpful?
Q: how many cubic feet are in the 12-lb bag?
5 years ago2 Answers
- A: Approximately 0.2 cubic feet.5 years agoHelpful?
Q: What types of food are these worms fed?
5 years ago2 Answers
- A: Earth Science Earthworm Castings are fed conventional (non-GMO) corn silage that is grown with organic fertilizer and without insecticides or herbicides. Please feel free to contact us at 877-405-5050 with any additional questions.5 years agoHelpful?
Q: Would this help amend clay soil for growing grass?
5 years ago1 Answer
- A: Thank you for your interest in Earth Science products! Yes, the earthworm casting will help amend clay soil. They add organic matter, which is generally good for all types of soil, from sandy soils to clay soils.5 years agoHelpful?
Q: Would this be recommended for pots, specifically, chestnut seedlings?
5 years ago1 Answer
- A: Captain Chestnuts, Absolutely! Earthworm Castings are an excellent soil supplement for plants and seedlings of any kind. They will significantly improve the soil structure in your pots by adding rich organic matter which will encourage root growth, increase water and nutrient holding capacity and improve overall plant vigor. Thanks for reaching out to us! Good luck! PS...I took a fascinating Forest Biology course at UGA under Dr. Scott Merkle that focused heavily on his work on restoration of the American Chestnut. Keep those chestnuts coming!5 years agoHelpful?
1 - 10 of 12 Questions
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1 to 4 of 58 Reviews .
1 – 4 of 58 Reviews
Most Recent
Reviews 2
5 out of 5 stars.
Great soil amendment
2 years ago
Good for the soil
Los Angeles, CA
Reviews 2
4 out of 5 stars.
Worm castings.
2 years ago
Seems good enough; without an analysis it's hard to know how good it really is. I'll never know what effect it has on the plants but it seems okay.
Yes, I recommend this product.
Gastonia, NC
Reviews 2
5 out of 5 stars.
Earthworm castings
2 years ago
Just what I needed for my plants
2023 Q4 SweepstakesYes
Yes, I recommend this product.
Anonymous
Pisgah Forest, North Carolina
Review 1
5 out of 5 stars.
Great Curbside Worm Compost Pickup
2 years ago
I ordered this for curbside pickup. The easiest shopping transaction I've had in a long time. Great service and good price.
Sweepstakes EntryYes
Yes, I recommend this product.