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Item #:
15228345
5 Pounds Calcium Carbonate Limestone Powder by The Seed Supply - Rock Dust - Great Soil Amendment and Fertilizer
89% of respondents would recommend this to a friend
Item #:
15228345
GBP 25
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Our Calcium Carbonate Limestone Powder is a versatile product that absorbs moisture, increases eggshell calcium, replaces lost calcium in cows, and neutralizes soil acidity. It's essential for maintaining optimal conditions in barns, animal areas, and plant beds.
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What Stands Out
High Purity
This calcium carbonate limestone powder boasts high purity levels, ensuring that your soil receives the best quality amendment for enhanced growth and nutrient absorption.
Versatile Use
Ideal for various applications, this rock dust serves as an effective soil amendment, fertilizer, and pH balancer, catering to gardeners, farmers, and horticulturists alike.
Eco-Friendly
Produced from natural limestone, this product promotes sustainable gardening practices, enhancing soil health while being safe for the environment and beneficial for plant life.
Product Details
- 5 pounds of off-white Calcium Carbonate Limestone Powder
- Neutralizes soil acidity to improve growing conditions
- Can be used to increase calcium in animal feed for chickens and cows
- Can be used as a moisture and odor absorbent in barns and animal areas
- For container pots, use 1-2 tablespoons per gallon of soil
- For soil application, till in 5-10 lbs per 100 sq. ft. before planting
| Brand Name | The Seed Supply |
| Manufacturer | Thermocal |
| Number of Items | 1 |
| UPC | 636123998995 |
| Unit Count | 80 Ounce |
| Item Form | Powder |
| Specific Uses For Product | Farming, Gardening, Animal Care |
| Coverage | 100 square feet |
| Target Species | plants, tomatoes, peppers, cucumbers, roses, orchids, palms, citrus |
| Item Weight | 5 pounds (2.27 kg) |
| Liquid Volume | 5 liters |
| Mixing Ratio | 1:0:0 |
| Brand | The Seed Supply |
Who Should Buy?
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Garden Enthusiasts
Perfect for gardeners seeking to improve soil health and enhance plant growth naturally with organic amendments.
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Farmers
A valuable addition for farmers looking to increase soil pH and improve crop yield through effective soil management.
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Organic Farmers
Ideal for organic farming practices where natural soil amendments are essential for maintaining soil vitality and fertility.
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Container Gardeners
Not suitable for container gardening where limited space requires more precise soil amendments and care.
Product Description
5 Pounds Calcium Carbonate Limestone Powder by The Seed Supply - Rock Dust - Great Soil Amendment and Fertilizer
Dietary Supplement Disclaimer
Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
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Customer Questions & Answers
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Question:
What is Calcium Carbonate Limestone Powder used for?
Answer: Calcium Carbonate Limestone Powder is primarily used as a soil amendment and fertilizer. It helps to enhance soil pH, making acidic soils more alkaline, which promotes better nutrient availability for plants. This powder enriches the soil with calcium, essential for root development and plant growth. For instance, when added to garden beds or flower pots, it can significantly improve the overall health and productivity of your plants. -
Question:
How is the 5 Pounds Calcium Carbonate Limestone Powder applied to the soil?
Answer: The Calcium Carbonate Limestone Powder can be applied by mixing it into the top layer of the soil before planting. For existing plants, it can be sprinkled around the base and worked into the soil. Generally, a recommended application would include mixing 1-2 cups of powder into a square yard of soil. This method ensures that the powder dissolves properly and the nutrients are evenly distributed, leading to optimal plant growth. -
Question:
Is this limestone powder organic?
Answer: The 5 Pounds Calcium Carbonate Limestone Powder is derived from natural limestone, making it an organic soil amendment. It is free from synthetic chemicals and additives, promoting a healthier growing environment for plants. Using organic amendments like this powder can support sustainable gardening practices, ensuring that your crops are grown in nutrient-rich soil without harmful substances. -
Question:
Can this product be used for indoor plants?
Answer: Absolutely! Calcium Carbonate Limestone Powder is beneficial for indoor plants as well. It can improve nutrient absorption and maintain the proper pH levels in potted plants. Using it in indoor gardening helps create an optimal growing environment, particularly in potting mixes that may be too acidic. Just be sure to monitor the soil's pH regularly to avoid over-alkalinity. -
Question:
What are the benefits of using rock dust like this limestone powder?
Answer: Rock dust, such as the Calcium Carbonate Limestone Powder, provides a range of benefits including improved soil fertility, enhanced microbial activity, and better water retention. By reintroducing essential minerals back into the soil, it boosts plant resilience and encourages sustainable growth. It’s particularly useful in regenerative agriculture where soil health and ecosystem balance are key objectives. -
Question:
Is Calcium Carbonate Limestone Powder safe for pets and children?
Answer: Yes, this product is generally considered safe for pets and children when used as intended. It is a natural mineral product without harmful additives. However, it's advisable to keep the powder out of reach of children and pets during application to prevent accidental ingestion. For extra caution, ensure to wash hands after handling and ventilate the area if applying indoors. -
Question:
How often should I apply Calcium Carbonate Limestone Powder?
Answer: The frequency of application can vary depending on soil type and plant needs. Typically, it can be applied every 6 to 12 months, particularly in the planting season or when testing reveals low soil pH. Regular monitoring of soil health ensures you can adjust your application accordingly, helping maintain optimal conditions for your plants and enhancing long-term soil fertility. -
Question:
Can I mix this limestone powder with other fertilizers?
Answer: Yes, Calcium Carbonate Limestone Powder can be mixed with other organic and chemical fertilizers. However, ensure to follow recommended application rates to avoid nutrient imbalances. Combining this powder with fertilizers can enhance nutrient availability, particularly when dealing with nutrient-deficient or acidic soils. It’s advised to conduct a soil test to tailor a mixture that best suits your gardening needs. -
Question:
What types of plants benefit most from Calcium Carbonate Limestone Powder?
Answer: Calcium Carbonate Limestone Powder is highly beneficial for a wide range of plants, especially those that prefer neutral to alkaline soils, such as vegetables (like tomatoes and peppers), flowers, and herbs. Specific crops, such as cabbage and broccoli, thrive in calcium-rich soils, which helps prevent issues like blossom end rot. Using this powder boosts overall plant vigor and enhances fruit and flower quality. -
Question:
Where can I buy 5 Pounds Calcium Carbonate Limestone Powder by The Seed Supply in Jersey?
Answer: You can purchase the 5 Pounds Calcium Carbonate Limestone Powder by The Seed Supply at Ubuy. Ubuy offers a convenient online shopping experience with a variety of soil amendments and fertilizers, ensuring you get quality products delivered right to your doorstep. Just search for the product on the Ubuy website to find your purchase options.
The Seed Supply Fertilizers & Plant Food Editorial Review
5 Pounds Calcium Carbonate Limestone Powder by The Seed Supply is a versatile soil amendment and fertilizer suitable for farming, gardening, and animal care. It effectively hardens chicken eggshells and is praised by users for its positive impact on their pets, as well as for various plants like tomatoes and cucumbers. The powder is easy to use and mixes well, providing noticeable benefits in a short time. However, some users noted that the bag size seemed smaller than expected. Overall, this product has been beneficial for both animal nutrition and plant health.
Customer Reviews & Ratings
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Pros
- Improves eggshell quality for chickens effectively
- Enhances plant health and growth for various species
- Versatile use for farming, gardening, and animal care
- Easy to mix and apply in desired ratios
- Positive user experiences reported quickly
Cons
- Bag size smaller than some customers expected
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“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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GBP 25
Order now and get it around Tuesday, October 13
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