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- 50lb High Grade Pulverized Leonardite Powder,...
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Item #:
57591827
50lb High Grade Pulverized Leonardite Powder, Naturally-Occurring Unaltered Oxidized Lignite, 70% Humic Acid Fertilizer
88% of respondents would recommend this to a friend
Item #:
57591827
AUD 269
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In stock
Imported from USA store
QTY:
Only 17 items left in stock.
Order now and get it around Saturday, September 19
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Concentrated source of humic acids with a naturally occurring, unaltered oxidized lignite
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What Stands Out
High Humic Acid
Contains 70% humic acid, enhancing soil health and nutrient absorption, promoting robust plant growth compared to standard fertilizers.
Natural Source
Made from naturally-occurring oxidized lignite, ensuring an unaltered and eco-friendly product that supports sustainable gardening practices.
Large Quantity
Supplied in a 50lb bag, providing gardeners with ample material for extensive application, perfect for both home gardeners and larger agricultural projects.
Product Details
- 50lb high grade pulverized leonardite powder
- Contains 70% humic acid, a concentrated source of humic acids
- Naturally occurring, unaltered oxidized lignite with particle size less than 50 mesh
- Suitable for all crops and compost
- Application guidelines: apply 75–150 lb/ac, broadcast in fall, post-harvest or early spring, pre-plant or with seed
- Can serve as a supplemental source of trace elements and used for extracting liquids through chemical reaction
| Brand Name | The Seed Supply |
| Manufacturer | Mesa Verde |
| Number of Items | 1 |
| UPC | 636123999213 |
| Unit Count | 800 Ounce |
| Part Number | 50-Leonardite |
| Item Form | Powder |
| Specific Uses For Product | Soil Conditioning , fertilizer |
| Coverage | 50 |
| Target Species | all crops |
| Item Weight | 50 pounds (22.68 kg) |
| Brand | The Seed Supply |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
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Organic Farmers
Ideal for organic farmers seeking natural fertilizers that enhance soil health and improves crop yields sustainably.
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Garden Enthusiasts
Great for home gardeners wanting to enrich soil with humic acid for better nutrient absorption and plant growth.
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Soil Restoration
Suitable for those looking to restore degraded soils, providing essential nutrients and improving soil structure effectively.
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Non-Organic Farms
Not suitable for non-organic farms that require synthetic fertilizers which this product cannot provide.
Product Description
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
-
Question:
What is Leonardite Powder and how is it used in gardening?
Answer: Leonardite Powder is a natural, high-grade organic material derived from oxidized lignite. It is rich in humic acid, specifically containing around 70% humic acid, which enhances soil fertility and boosts plant growth. By incorporating this powder into your garden, you improve soil structure, water retention, and nutrient absorption. It's particularly beneficial for vegetable gardens and flower beds, making it an excellent choice for organic gardening enthusiasts. -
Question:
What are the benefits of using 70% Humic Acid Fertilizer?
Answer: The 70% Humic Acid content in Leonardite Powder offers numerous benefits, such as improving soil health, enhancing microbial activity, and increasing nutrient availability for plants. It also helps in detoxifying soil pollutants and enhancing root development, leading to healthier, more vigorous plants. This makes it an ideal fertilizer for a variety of applications, including agricultural crops, ornamental plants, and turf management. -
Question:
Is Leonardite Powder safe for organic gardening?
Answer: Yes, Leonardite Powder is safe for organic gardening as it is naturally occurring and contains no synthetic additives. Its high humic acid concentration promotes organic matter in the soil without altering its natural state. Gardeners looking to cultivate organic vegetables, fruits, or flowers can confidently use this product, ensuring their gardening practices align with organic standards while enhancing plant growth. -
Question:
How should I apply Leonardite Powder to my plants?
Answer: To apply Leonardite Powder, you can mix it into the top layer of your soil or compost. A general recommendation is to use between 1 to 3 cups per 10 square feet, depending on your soil's condition. Its fine texture allows for easy incorporation, and it works well when mixed with other organic fertilizers. Regular applications every few weeks can significantly boost plant health and soil vitality, especially during the growing season. -
Question:
Can I use Leonardite Powder in container gardening?
Answer: Absolutely! Leonardite Powder is ideal for container gardening as it enriches the potting soil with essential nutrients and enhances water retention. When mixing your potting soil, consider adding approximately 10-20% Leonardite Powder to improve its quality. This ensures that container plants receive the necessary nutrients for optimal growth, making it perfect for indoor plants, balcony gardens, or small outdoor pots. -
Question:
What types of crops benefit most from Leonardite Powder?
Answer: Leonardite Powder can benefit a wide variety of crops, but it is particularly advantageous for root crops such as carrots and potatoes, leafy vegetables like lettuce and spinach, and flowering plants. The high humic acid content enhances their growth by improving soil structure and nutrient absorption. Farmers and gardeners will notice improved yields and healthier plants when they incorporate this organic fertilizer into their farming practices. -
Question:
Does Leonardite Powder help with soil erosion?
Answer: Yes, using Leonardite Powder can help reduce soil erosion. The humic acid in the powder helps bind soil particles together, improving soil structure and stability. This feature is particularly beneficial in areas prone to wind and water erosion. By integrating Leonardite Powder into your soil management practices, you can create a more resilient ecosystem that retains moisture and prevents nutrient runoff, fostering a more sustainable garden. -
Question:
Can I mix Leonardite Powder with other fertilizers?
Answer: Yes, Leonardite Powder can be effectively mixed with other organic fertilizers, such as compost or manure. Combining it with other nutrient sources can enhance the overall nutrient profile of your soil, promoting better plant growth. For optimal results, ensure a balanced mix, allowing each component to contribute to soil health while taking advantage of the powerful humic acid in Leonardite Powder. -
Question:
Is there a specific time of year to use Leonardite Powder?
Answer: While Leonardite Powder can be used year-round, the best times are during soil preparation in the spring or fall, coinciding with planting seasons. Applying it before planting allows the beneficial humic substances to incorporate into the soil, setting a strong foundation for crops. Additionally, using it during the growing season can provide ongoing nutrient support, promoting continuous plant health. -
Question:
Where can I buy 50lb High Grade Pulverized Leonardite Powder in Australia?
Answer: You can purchase the 50lb High Grade Pulverized Leonardite Powder from Ubuy. They offer a reliable selection of gardening products, ensuring that you receive quality materials that support your gardening goals. The easy-to-navigate platform also provides product details and user reviews, making it simple to make an informed decision.
The Seed Supply Fertilizers & Plant Food Editorial Review
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Customer Reviews & Ratings
6 customers ratings
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5 Star
55%
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4 Star
25%
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3 Star
20%
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2 Star
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Pros
- High humic acid content
- Improves soil quality
- Enhances nutrient absorption
- Natural organic fertilizer
- Eco-friendly amendment
Cons
- Dusty texture
Platform Trust & Buyer Confidence
CJ
Chris
Verified buyer
“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
SM
Scott
Verified buyer
“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
11 July 2026 · via Trustpilot
TD
Terri
Verified buyer
“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
GC
Gavin
Verified buyer
“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
J
Jeannie
Verified buyer
“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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AUD 269
Order now and get it around Saturday, September 19
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 17 items left in stock.
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Features & Benefits
- Contains 70% humic acid
- Particle size smaller than 50 mesh
- Suitable for all crops and compost
- Application in fall, post-harvest or early spring
- Apply 75-150 lb/acre
- Can be used for extracting liquids
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