The best humic acid fertilizers depend on how you plan to apply them: my best overall pick is Wallace Organic Wonder DS-80 for buyers who want a soluble powder, while Simple Lawn Solutions Soil Hume stands out for a liquid blend with seaweed and The Andersons Humic DG for broad lawn coverage in granular form. This lineup also includes concentrated liquids, garden-focused amendments, and products sold in several package sizes. The main tradeoffs are application convenience, how much product you need, and whether you want humic acid alone or a blend with other ingredients. I compare those differences alongside intended use and product format. Continue reading for the full breakdown and a guide to choosing a product that fits your soil and application routine.
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Key Takeaways
- Format is a defining difference: Wallace Organic Wonder DS-80 is a soluble powder, several picks are liquids, and Down To Earth and The Andersons offer granular options for buyers who prefer dry application.
- Some products combine ingredients: Simple Lawn Solutions Soil Hume pairs humic acid with seaweed, while the 15-0-15 product is a nutrient-bearing lawn fertilizer rather than a humic-acid-only amendment.
- Package size changes the buying decision: Bloom City appears in 8-ounce, 32-ounce, and gallon formats, giving buyers a way to match quantity to garden size and application frequency.
- Concentrate and ready-to-use are not interchangeable: Compare dilution directions and treated-area guidance before choosing by bottle size alone.
- The best fit depends on the job: Lawn-scale use points toward larger liquid or granular packages, while small gardens and trial applications may suit smaller bottles or soluble powder better.
| Wallace Organic Wonder DS-80 Soluble Humic and Fulvic Acid Powder, 1 lb |  | Best for Flexible Applications | Form: Water-soluble powder | Weight: 1 lb (16 oz) | Humic and fulvic acid content: Minimum 93% | VIEW LATEST PRICE | See Our Full Breakdown |
| Simple Lawn Solutions Soil Hume Seaweed and Humic Acid Concentrate, 32 fl oz |  | Best Humic-and-Seaweed Blend | Form: Liquid concentrate | Volume: 32 fluid ounces | Weight: 2 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| FoliarTech Organic Humic Acid Soil Conditioner, 1.1 Gallons |  | Best for Organic-Certified Programs | Form: Liquid concentrate | Volume: 1.1 gallons (135.26 fluid ounces) | Certification: OMRI-certified | VIEW LATEST PRICE | See Our Full Breakdown |
| Bloom City Humic Acid Liquid Soil Conditioner for Plants and Lawns, 32 oz |  | Best for Routine Lawn and Garden Care | Form: Liquid | Volume: 32 fluid ounces | Weight: 2 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| Simple Lawn Solutions 15-0-15 Liquid Lawn Fertilizer, 1 Quart |  | Best for Humic Acid Plus Lawn Nutrition | Form: Liquid fertilizer | Volume: 32 fluid ounces (1 quart) | NPK ratio: 15-0-15 | VIEW LATEST PRICE | See Our Full Breakdown |
| Down To Earth Organic Granular Humic Acids, 5 lb |  | Best Organic Granular Pick | Brand: Down To Earth All Natural Fertilizers | Form: Granules | Granule size: 1–3 mm | VIEW LATEST PRICE | See Our Full Breakdown |
| GS Plant Foods Liquid Humic Acid Soil Amendment, Leonardite-Derived, 1 Gallon |  | Best for Sprayer Application | Brand: GS Plant Foods | Form: Liquid | Source: Leonardite | VIEW LATEST PRICE | See Our Full Breakdown |
| PowerGrow Systems Humic Acid Fertilizer and Soil Conditioner, 5 lb |  | Best Powder for Soil Conditioning | Brand: PowerGrow Systems | Model number: HUMIC-5LB | Form: Powder | VIEW LATEST PRICE | See Our Full Breakdown |
| Bloom City Humic Acid Liquid Soil Conditioner, 8 oz |  | Best Compact Pick for Indoor Plants | Brand: Bloom City | Form: Liquid | Volume: 8 fl oz | VIEW LATEST PRICE | See Our Full Breakdown |
| Bloom City Humic Acid Liquid Soil Conditioner for Lawns and Gardens, 1 Gallon |  | Best Large-Format Lawn and Garden Pick | Brand: Bloom City | Form: Liquid | Volume: 128 fluid ounces (1 gallon) | VIEW LATEST PRICE | See Our Full Breakdown |
| Farm Made Organics Humic+ Liquid Humic Acid Soil Conditioner, 32 oz |  | Best for Mixed Plantings | Form: Liquid | Humic acid concentration: 5% from Leonardite | Additional ingredients: Fulvic acid, sea kelp extract, soluble potash | VIEW LATEST PRICE | See Our Full Breakdown |
| Humic Acid Fertilizer and Soil Conditioner, 10 lb | | Best for Straightforward Granular Application | Brand: PowerGrow Systems | Form: Granules | Weight: 10 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| GS Plant Foods Humic Acid Soil Amendment, Liquid Concentrate, 32 oz |  | Best for Organic-Program Compatibility | Form: Liquid concentrate | Source: Leonardite | Organic listing: OMRI Listed | VIEW LATEST PRICE | See Our Full Breakdown |
| Farmer’s Secret Organic Soil Revitalizer, Liquid Humic Acid Amendment, 32 fl oz |  | Best for Large-Area Liquid Coverage | Form: Liquid | Volume: 32 fluid ounces | Main ingredient: Activated humics | VIEW LATEST PRICE | See Our Full Breakdown |
| The Andersons Humic DG Organic Soil Amendment, 40 lb |  | Best for Large Lawns and High Humic Content | Form: Granules | Weight: 40 pounds | Humic content: 70% | VIEW LATEST PRICE | See Our Full Breakdown |
| humic acid fertilizer | Form | Volume | Mixing ratio | Weight |
|---|---|---|---|---|
| Wallace Organic Wonder DS-80 S | Water-soluble powder | — | 0.5 teaspoons per gallon of water | 1 lb (16 oz) |
| Simple Lawn Solutions Soil Hum | Liquid concentrate | 32 fluid ounces | 1:100 | 2 pounds |
| FoliarTech Organic Humic Acid | Liquid concentrate | 1.1 gallons (135.26 fluid ounces) | Provided on bottle label | — |
| Bloom City Humic Acid Liquid S | Liquid | 32 fluid ounces | 1:1000 | 2 pounds |
| Simple Lawn Solutions 15-0-15 | Liquid fertilizer | 32 fluid ounces (1 quart) | — | — |
| Down To Earth Organic Granular | Granules | — | — | — |
| GS Plant Foods Liquid Humic Ac | Liquid | 1 gallon (128 fluid ounces) | 1:64 | 8 pounds |
| PowerGrow Systems Humic Acid F | Powder | — | 1:0:0 | 5 lb |
| Bloom City Humic Acid Liquid S | Liquid | 8 fl oz | 1:5120 | — |
| Bloom City Humic Acid Liquid S | Liquid | 128 fluid ounces (1 gallon) | — | 8 pounds |
| Farm Made Organics Humic+ Liqu | Liquid | 32 fluid ounces | — | — |
| Humic Acid Fertilizer and Soil | Granules | — | — | 10 pounds |
| GS Plant Foods Humic Acid Soil | Liquid concentrate | 32 fluid ounces | 2:128 | — |
| Farmer’s Secret Organic Soil R | Liquid | 32 fluid ounces | 1 ounce per gallon (1:128) | — |
| The Andersons Humic DG Organic | Granules | — | — | 40 pounds |
More Details on Our Top Picks
Wallace Organic Wonder DS-80 Soluble Humic and Fulvic Acid Powder, 1 lb
Wallace Organic Wonder DS-80 is the most adaptable pick here for gardeners who want to choose between soil drenching, foliar feeding, fertigation, and seed treatment. Its powder is completely water-soluble and contains a minimum 93% humic and fulvic acids, so a small amount makes a prepared batch rather than requiring a ready-to-use liquid. Compared with Simple Lawn Solutions Soil Hume, it has no seaweed component, but it offers more application methods and a more concentrated stated acid content. The tradeoff is hands-on preparation: the suggested rate is 0.5 teaspoons per gallon, with weekly use, so repeat treatments mean repeat mixing. I’d choose it for growers who value flexibility and concentration over quick, ready-to-spray convenience.
Pros:- Completely water-soluble powder
- Can be used for soil drenching, foliar application, fertigation, and seed treatment
- Minimum 93% humic and fulvic acid content
- Can be mixed with many liquid fertilizers and micronutrients
Cons:- Must be measured and mixed before application
- Suggested weekly use adds recurring preparation
- Does not include the seaweed blend found in Simple Lawn Solutions Soil Hume
Best for: Gardeners and small-scale growers who want one soluble humic-and-fulvic product for soil, foliage, fertigation, or seed treatment.
Not ideal for: Buyers who want a ready-to-apply liquid or prefer not to mix and prepare weekly applications.
- Form:Water-soluble powder
- Weight:1 lb (16 oz)
- Humic and fulvic acid content:Minimum 93%
- Mixing ratio:0.5 teaspoons per gallon of water
- Suggested frequency:Weekly
- Application methods:Soil drench, foliar application, fertigation, and seed treatment
Our verdict“Choose Wallace DS-80 if you want concentrated, multi-method humic and fulvic acid treatment and don’t mind mixing each batch.”
Simple Lawn Solutions Soil Hume Seaweed and Humic Acid Concentrate, 32 fl oz
Simple Lawn Solutions Soil Hume pairs 4.5% leonardite-derived humic acid with 4% Ascophyllum nodosum seaweed, making it the clearest choice for buyers who want both ingredients in a liquid soil amendment. It can be applied to lawns, gardens, or indoor plants using a sprayer or watering can, while Wallace Organic Wonder DS-80 offers more application options but requires dissolving a powder and does not include seaweed. Soil Hume’s 1:100 dilution gives users a straightforward mixing guide, though it remains an add-on rather than a complete fertilizer. I’d pair it with an existing feeding plan, not rely on it to supply a full nutrient program. Its broad use range is useful, but buyers seeking a humic-only formula may prefer a product without the seaweed blend.
Pros:- Combines 4.5% humic acid with 4% seaweed
- Suitable for lawns, gardens, and indoor plants
- Can be applied with common sprayers or a watering can
- Has a stated 1:100 mixing ratio
Cons:- Designed to supplement a fertilizer program rather than replace one
- The blend may not suit buyers who want humic acid without seaweed
- Requires dilution before application
Best for: Lawn and garden owners who already fertilize and want a liquid humic-and-seaweed supplement for multiple plant settings.
Not ideal for: Buyers seeking a standalone fertilizer, a humic-only amendment, or a powder with a higher stated acid concentration.
- Form:Liquid concentrate
- Volume:32 fluid ounces
- Weight:2 pounds
- Humic acid content:4.5%
- Seaweed content:4% Ascophyllum nodosum
- Mixing ratio:1:100
- Application:Sprayer or watering can
- Country of manufacture:United States
Our verdict“Pick Soil Hume if you want an easy-to-apply liquid blend of humic acid and seaweed to complement your existing fertilizer routine.”
FoliarTech Organic Humic Acid Soil Conditioner, 1.1 Gallons
FoliarTech Organic Humic Acid Soil Conditioner stands out for its OMRI certification and large liquid format, which suit growers who want a certified option for broader treatment plans. Made from Humalite sourced from Alberta, Canada, it is water-soluble and can be applied as a soil drench or foliar spray. The supplied coverage information includes one acre by spray or 2,000 L of irrigation water, giving larger-scale users a useful planning reference. Unlike Bloom City Humic Acid Liquid Soil Conditioner, this product provides a stated large-volume coverage figure and certification, but its mixing ratio is left to the bottle label. Its listed target species are lawn grasses even though the description allows broader use, so I’d check the label before applying it to less typical plants.
Pros:- OMRI-certified
- Water-soluble and suitable for soil drenching or foliar spraying
- Large 1.1-gallon container with stated coverage information
- Made from Humalite sourced from Alberta, Canada
Cons:- Mixing ratio is provided on the bottle label rather than in the listed specs
- Lawn grasses are the stated target species despite broader use claims
- The large container may be more than small-scale growers need
Best for: Organic-program lawn managers and gardeners who want a large liquid concentrate with OMRI certification and multiple application methods.
Not ideal for: Small gardens needing a compact container, or buyers who need the dilution rate clearly stated in the product details before purchase.
- Form:Liquid concentrate
- Volume:1.1 gallons (135.26 fluid ounces)
- Certification:OMRI-certified
- Source material:Humalite from Alberta, Canada
- Application methods:Soil drench or foliar spray
- Spray coverage:1 acre / 0.4 ha / 43,500 sq ft
- Irrigation coverage:2,000 L of water
- Mixing ratio:Provided on bottle label
- Listed target species:Lawn grasses
Our verdict“Choose FoliarTech if certification and larger-scale liquid application matter more to you than having the dilution rate listed upfront.”
Bloom City Humic Acid Liquid Soil Conditioner for Plants and Lawns, 32 oz
Bloom City Humic Acid Liquid Soil Conditioner is a straightforward fit for homeowners who want a liquid humic amendment for lawns and gardens, especially where compacted soil is a concern. Its stated 1:1000 mixing ratio means a small amount is diluted into a larger volume of water, so it can slot into an established watering or lawn-care routine. Compared with Simple Lawn Solutions Soil Hume, Bloom City focuses on humic acid rather than combining it with seaweed; Soil Hume also lists a less dilute mixing ratio. Neither product is a complete fertilizer, so I’d treat Bloom City as a soil conditioner alongside an appropriate nutrient plan. The product data gives less detail on concentration and source material than FoliarTech, leaving buyers with fewer specifics for comparing formula strength.
Pros:- Intended for both lawns and gardens
- Designed to support soil structure, nutrient uptake, and root strength
- May help loosen compacted clay soil
- Can be incorporated into regular lawn-care routines
Cons:- Requires dilution at a 1:1000 mixing ratio
- Product data does not state a humic acid percentage
- Does not provide the seaweed blend found in Simple Lawn Solutions Soil Hume
Best for: Homeowners maintaining lawns and garden beds who want a liquid humic soil conditioner that can be diluted into routine care.
Not ideal for: Buyers who need a stated humic acid percentage, source material, or a ready-to-use product that requires no dilution.
- Form:Liquid
- Volume:32 fluid ounces
- Weight:2 pounds
- Mixing ratio:1:1000
- Intended use:Lawns and gardens
- Pack count:1
Our verdict“Choose Bloom City for a simple liquid humic conditioner for lawn and garden routines, but look elsewhere if you need detailed concentration data.”
Simple Lawn Solutions 15-0-15 Liquid Lawn Fertilizer, 1 Quart
Simple Lawn Solutions 15-0-15 differs from the other picks because humic acid comes alongside substantial lawn nutrients: 15% nitrogen and 15% potassium, with no phosphorus. That makes it the most direct fit here for buyers who want a nutrient-feeding product that also contains humic acid, rather than a dedicated soil conditioner like Bloom City Humic Acid Liquid Soil Conditioner. The phosphorus-free formula is suitable for a range of listed turf types and ornamental plantings, and it can be applied with common sprayers or a watering can. Its tradeoff is that this is not a humic-focused amendment with a stated humic acid percentage; it is a fertilizer first. The listing also calls for sufficient watering and use alongside a fertilizer program, so it may not suit anyone seeking a standalone humic treatment.
Pros:- Provides 15% nitrogen and 15% potassium
- Phosphorus-free formula
- Contains humic acid, potash, and sulfur
- Works with hose-end, backpack, and pump sprayers or a watering can
Cons:- The listing does not state a humic acid percentage
- Requires sufficient watering for nutrient absorption
- Recommended alongside a fertilizer program rather than as a complete standalone feeding plan
Best for: Turf owners who want nitrogen and potassium feeding with humic acid in the same liquid product, including those maintaining the listed warm- and cool-season grasses.
Not ideal for: Buyers seeking a dedicated humic acid soil conditioner, a stated humic acid concentration, or a phosphorus-containing fertilizer.
- Form:Liquid fertilizer
- Volume:32 fluid ounces (1 quart)
- NPK ratio:15-0-15
- Nutrient content:15% nitrogen and 15% potassium
- Phosphorus:None
- Other listed contents:Humic acid, potash, and sulfur
- Application methods:Hose-end sprayer, backpack sprayer, pump sprayer, or watering can
- Suitable plants:Turf grass, ornamentals, young plants, flower beds, potting soil, and trees
- Grass types:Bermuda, St. Augustine, Zoysia, Buffalo, Centipede, Palmetto, and Bluegrass
Our verdict“Choose this formula if lawn nutrition is your priority and you want humic acid included, not if you need a dedicated humic soil amendment.”
Down To Earth Organic Granular Humic Acids, 5 lb
Down To Earth stands out for its 50% humic acids in easy-to-handle 1–3 mm granules, giving organic growers a concentrated soil amendment for beds, lawns, turf, and fields. Its OMRI listing makes it a better fit for organic production than products without that designation, while the granular form avoids the spraying and dilution required by GS Plant Foods Liquid Humic Acid. The tradeoff is application flexibility: granules are less suited to someone who wants a liquid for sprayer use or houseplants. This is a soil amendment, not a complete fertilizer, and the product description presents nutrient uptake and microbial benefits as potential outcomes rather than guarantees. Buyers should plan to pair it with a suitable fertilizer when plants need direct nutrient inputs.
Pros:- Contains 50% total humic acids
- OMRI listed for use in organic production
- Granular form suits soil application across gardens, lawns, turf, and fields
- May support nutrient uptake and soil microbial life
Cons:- Does not provide a complete fertilizer program
- Potential soil and nutrient benefits are not guaranteed
- Granules are less convenient than liquid concentrates for sprayer application
Best for: Organic gardeners and lawn or field managers who want a concentrated granular humic amendment for soil application.
Not ideal for: Growers who need a complete fertilizer or a liquid product for spraying and indoor plant care.
- Brand:Down To Earth All Natural Fertilizers
- Form:Granules
- Granule size:1–3 mm
- Total humic acids:50%
- Item weight:5 pounds
- Organic listing:OMRI listed for use in organic production
- Target areas:Fields, turf, lawns, and vegetable gardens
Our verdict“Choose Down To Earth if you want an OMRI-listed, concentrated granular amendment for soil, not a standalone fertilizer or sprayable liquid.”
GS Plant Foods Liquid Humic Acid Soil Amendment, Leonardite-Derived, 1 Gallon
GS Plant Foods is the most application-ready option here for buyers who prefer a liquid they can dilute and apply with a sprayer. Its 1:64 mixing ratio and one-gallon volume suit recurring treatment across gardens, lawns, trees, and other plants, while its Leonardite source and OMRI listing distinguish it from Bloom City’s 8 oz liquid, which has a much smaller package and a much stronger listed dilution. Compared with Down To Earth’s granules, this pick is easier to distribute as a spray but requires mixing and attention to compatibility. The maker advises against combining it with low-pH or high-calcium formulations, so it may not fit every existing spray tank or fertilizer routine. It is a soil amendment, not a replacement for plant nutrients.
Pros:- Leonardite-derived liquid concentrate
- OMRI listed for organic use
- 1:64 mixing ratio supports diluted sprayer application
- Intended for a broad range of plants and growing settings
Cons:- Must be diluted before application
- Should not be mixed with low-pH or high-calcium formulations
- Does not replace a complete fertilizer
Best for: Gardeners, lawn-care users, and plant growers who want an OMRI-listed liquid concentrate for sprayer application across several growing areas.
Not ideal for: Buyers who need a ready-to-use product or plan to mix humic acid with low-pH or high-calcium formulations.
- Brand:GS Plant Foods
- Form:Liquid
- Source:Leonardite
- Volume:1 gallon (128 fluid ounces)
- Weight:8 pounds
- Mixing ratio:1:64
- Application method:Sprayer
- Organic listing:OMRI Listed
Our verdict“Pick GS Plant Foods for versatile sprayer use and organic listing, provided its mixing restrictions work with your routine.”
PowerGrow Systems Humic Acid Fertilizer and Soil Conditioner, 5 lb
PowerGrow Systems is the powder-format choice for gardeners who want a soil conditioner aimed at several soil-health goals, including water retention, microbial activity, root health, and seed germination. That makes it broader in stated purpose than Down To Earth’s granular option, which gives a clear 50% humic-acid concentration and an OMRI listing. PowerGrow’s product data, by contrast, does not state a humic-acid percentage or organic certification, so buyers who prioritize those specifics may prefer Down To Earth. The powder is screened for garden use, but the listed 1:0:0 mixing ratio is unclear and does not give a practical application guide. This pick is best for buyers comfortable checking the label or seeking application directions before use, rather than those who want a clearly specified dilution routine.
Pros:- Powdered form is suited to soil-conditioning use
- Product description targets water retention and microbial activity
- May support root health, nutrient uptake, and seed germination
- Screened for garden use
Cons:- Listed mixing ratio of 1:0:0 may need clarification
- Product data does not state a humic-acid percentage
- Product data does not specify an organic certification
Best for: Gardeners seeking a powdered soil conditioner for soil-water retention and root-zone support who can confirm application directions before use.
Not ideal for: Buyers who require a stated humic-acid concentration, OMRI listing, or clear mixing instructions before purchasing.
- Brand:PowerGrow Systems
- Model number:HUMIC-5LB
- Form:Powder
- Weight:5 lb
- Coverage:Medium
- Target species:Plants
- Mixing ratio:1:0:0
- Unit count:80 ounces
Our verdict“Choose PowerGrow if you want a multi-purpose powder and can verify its application directions, but favor Down To Earth for clearer concentration and organic credentials.”
Bloom City Humic Acid Liquid Soil Conditioner, 8 oz
Bloom City’s 8 oz bottle is the compact choice for buyers who want one humic conditioner for indoor plants, gardens, or lawns without storing a gallon jug. Its listed 1:5120 mixing ratio suggests a highly diluted application, but the product data gives coverage figures for 32 oz and 128 oz sizes rather than this 8 oz package. That leaves buyers with less certainty about package-specific coverage than they get from GS Plant Foods, which lists both a gallon volume and a 1:64 ratio. Bloom City’s stated benefits—loosening compacted clay, supporting root strength, and helping retain water and nutrients—may suit soil-conditioning needs, but it still requires dilution and is not a fertilizer with stated nutrient content. I’d choose it for small-scale use, not for treating a large lawn.
Pros:- Compact 8 fl oz bottle is easier to store than a gallon
- Suitable for indoor plants, gardens, and lawns
- May help loosen compacted clay and support soil structure
- Designed to support root strength and water and nutrient retention
Cons:- Requires dilution before use
- Coverage information is not provided for the 8 oz package
- Product data does not state a humic-acid concentration
Best for: Houseplant owners and small-scale gardeners who want a compact liquid conditioner for occasional soil applications.
Not ideal for: Lawn owners treating large areas who need clearly stated coverage for the exact package size or prefer a ready-to-use product.
- Brand:Bloom City
- Form:Liquid
- Volume:8 fl oz
- Uses:Plant growth and soil conditioning
- Target species:Indoor plants, gardens, and lawns
- Mixing ratio:1:5120
- Coverage information:Coverage figures are provided for 32 oz and 128 oz sizes, not the 8 oz package
- Made in:USA
Our verdict“Choose the 8 oz Bloom City bottle for compact, small-scale use, but pick GS Plant Foods or a larger Bloom City size for broader coverage.”
Bloom City Humic Acid Liquid Soil Conditioner for Lawns and Gardens, 1 Gallon
This one-gallon Bloom City bottle suits regular lawn and garden care when a small package like the brand’s 8 oz option would be impractical. The larger format provides 128 fluid ounces for repeated use, and its stated focus on compacted clay, root strength, and water and nutrient retention gives it a clear soil-conditioning role. Compared with GS Plant Foods’ gallon concentrate, Bloom City does not provide a mixing ratio in the supplied product data, making it harder to plan each application or compare dilution needs. It is also described for lawns and gardens, not the broader range of settings listed for GS Plant Foods. Buyers should check the product label for dosing instructions before use; this is an amendment to complement lawn care, not a substitute for a complete fertilizer.
Pros:- One-gallon volume suits repeated lawn and garden use
- Designed to help loosen compacted clay
- May support root strength and nutrient uptake
- Can be used alongside regular lawn-care routines
Cons:- Product data does not provide a mixing ratio
- Intended for lawns and gardens rather than a stated range including houseplants
- Does not replace a complete fertilizer
Best for: Homeowners and gardeners who want a larger liquid soil conditioner for repeated lawn and garden applications.
Not ideal for: Buyers who need a stated mixing ratio before purchase or want a product specifically described for indoor plants and a wider range of settings.
- Brand:Bloom City
- Form:Liquid
- Volume:128 fluid ounces (1 gallon)
- Weight:8 pounds
- Intended use:Lawns and gardens
- Made in:USA
- Part number:BHUMIC1G
- UPC:841401125325
Our verdict“Choose this Bloom City gallon for repeated lawn and garden soil conditioning if you can confirm the dilution instructions on the label.”
Farm Made Organics Humic+ Liquid Humic Acid Soil Conditioner, 32 oz
Farm Made Organics Humic+ suits gardeners who want one liquid amendment for a lawn, vegetable beds, shrubs, and indoor plants. Its 5% Leonardite humic acid is paired with fulvic acid, sea kelp extract, and soluble potash, giving it a broader ingredient blend than the humic-focused GS Plant Foods Soil Amendment. Dilution and application with a watering can or sprayer make it adaptable to different planting areas, though the every-two-to-four-week schedule means more frequent upkeep than Farmer’s Secret’s monthly routine. The earthy, kelp-like odor may bother users applying it indoors or near patios, and this 32-ounce bottle requires mixing before use. I’d choose it for varied home plantings, not for someone seeking a dry product or a single, low-maintenance seasonal application.
Pros:- Contains 5% Leonardite-derived humic acid
- Adds fulvic acid, sea kelp extract, and soluble potash
- Suitable for a wide range of indoor and outdoor plants
- Can be applied with a common sprayer or watering can
Cons:- Requires dilution before each application
- Has a naturally earthy, kelp-like smell before dilution
- Recommended application every two to four weeks calls for regular upkeep
Best for: Home gardeners caring for a mix of lawns, vegetables, flowers, shrubs, and indoor plants who want a liquid formula with humic acid and complementary ingredients.
Not ideal for: Indoor gardeners sensitive to earthy odors, or buyers who prefer ready-to-spread granules and do not want to dilute a concentrate.
- Form:Liquid
- Humic acid concentration:5% from Leonardite
- Additional ingredients:Fulvic acid, sea kelp extract, soluble potash
- Volume:32 fluid ounces
- Application:Dilute with water; apply with a sprayer or watering can
- Recommended frequency:Every 2 to 4 weeks during the growing season
- Target plants:Lawn grass, flowers, vegetables, trees, shrubs, and indoor plants
- Country of origin:USA
Our verdict“Choose Farm Made Organics Humic+ if you want a versatile liquid amendment for several kinds of plants and don’t mind routine mixing.”
Humic Acid Fertilizer and Soil Conditioner, 10 lb
PowerGrow Systems’ 10-pound granular amendment is the simple dry-format choice here: scatter the screened particles over garden soil rather than mixing a liquid concentrate. The product description points to possible gains in nutrient uptake, microbial activity, and water retention, making it a fit for gardeners focused on soil condition rather than a humic product with added seaweed or potash, such as Farm Made Organics Humic+. Its main drawback is a real usability gap: the supplied 1:1 mixing ratio lacks further instructions, leaving application amounts and the meaning of that ratio unclear. Compared with The Andersons Humic DG, this smaller package may be easier to manage for garden beds, but the listed data gives no humic percentage or coverage figure to help plan use across a larger area.
Pros:- Granular form can be scattered without preparing a liquid spray
- Small screened particles are intended for garden use
- May support nutrient uptake and soil microbial activity
- May help improve soil water retention
Cons:- The listed 1:1 mixing ratio has no accompanying instructions
- No humic concentration or coverage figure is provided
- The product data does not specify an application frequency
Best for: Gardeners who want a manageable-size granular soil amendment to scatter in garden beds and value soil-focused benefits over a multi-ingredient liquid.
Not ideal for: Buyers who need a clearly stated application rate, coverage estimate, or humic concentration before treating a lawn or large planting area.
- Brand:PowerGrow Systems
- Form:Granules
- Weight:10 pounds
- Pack count:1
- Application method:Scatter
- Listed mixing ratio:1:1; further instructions not provided
- Target:Plants
Our verdict“Pick this 10-pound option for garden-scale granular use only if the unclear application guidance is acceptable to you.”
GS Plant Foods Humic Acid Soil Amendment, Liquid Concentrate, 32 oz
GS Plant Foods’ 32-ounce concentrate earns its place for gardeners who want a humic amendment that fits many existing fertilizer routines. Its OMRI listing and Leonardite source distinguish it from Farm Made Organics Humic+, which combines humic acid with sea kelp and soluble potash; this GS formula is positioned around soil structure, nutrient availability, and root-zone development. The stated 2:128 mixing ratio gives users a dilution reference, and the spray application suits lawns and garden areas. Compatibility has a boundary, though: the product should not be mixed with low-pH or high-calcium formulations. That restriction matters for anyone combining products in one tank, so I’d keep it separate from uncertain blends rather than assume every fertilizer can be mixed with it.
Pros:- OMRI Listed for organic use
- Leonardite-derived humic acid amendment
- Intended to support soil structure, nutrient availability, and root development
- Can fit many existing garden, lawn, and landscape fertilizer programs
Cons:- Should not be mixed with low-pH formulations
- Should not be mixed with high-calcium formulations
- Requires dilution and spray application
Best for: Gardeners and lawn keepers using an organic-listed amendment who want a liquid concentrate to add to a broader fertilizer program, with attention to tank-mix compatibility.
Not ideal for: Buyers who routinely combine low-pH or high-calcium products in a spray tank, or who want an amendment with added kelp and potash.
- Form:Liquid concentrate
- Source:Leonardite
- Organic listing:OMRI Listed
- Volume:32 fluid ounces
- Mixing ratio:2:128
- Application method:Spray
- Specific uses:Plant growth, root development, and nutrient uptake
- Target species:Lawn
Our verdict“Choose GS Plant Foods if organic listing and use alongside many fertilizer programs matter more than a multi-ingredient formula.”
Farmer’s Secret Organic Soil Revitalizer, Liquid Humic Acid Amendment, 32 fl oz
Farmer’s Secret Organic Soil Revitalizer is the liquid pick for buyers who need to treat a broad area without choosing a granular spreader product. The maker lists coverage of up to 32,000 square feet from a 32-ounce bottle, using a dilution rate of one ounce per gallon. That coverage and its monthly application schedule contrast with Farm Made Organics Humic+, which is recommended every two to four weeks and includes kelp and soluble potash. Farmer’s Secret instead centers on activated humics and soil application, by spraying or pouring. It is OMRI listed, but it is not a direct plant-feeding formula; gardeners seeking a broader nutrient blend should look at Farm Made Organics. Dilution also adds preparation, despite the large stated coverage.
Pros:- Listed coverage of up to 32,000 square feet
- Made with activated humics from organic sources
- OMRI listed
- Can be sprayed or poured onto soil
Cons:- Must be diluted at 1 ounce per gallon
- Intended for soil application rather than direct plant feeding
- Monthly use may not suit buyers seeking a more frequent application schedule
Best for: Owners of larger lawns or landscape areas who want an OMRI-listed liquid humic amendment with a stated coverage area and monthly seasonal schedule.
Not ideal for: Container growers seeking a direct plant-feeding product, or buyers who want a ready-to-use formula without dilution.
- Form:Liquid
- Volume:32 fluid ounces
- Main ingredient:Activated humics
- Organic listing:OMRI listed
- Mixing ratio:1 ounce per gallon (1:128)
- Application method:Spray or pour onto soil
- Coverage:Up to 32,000 square feet
- Recommended frequency:Monthly during the growing season
Our verdict“Choose Farmer’s Secret for broad soil coverage and monthly liquid application, not for direct feeding or ready-to-use convenience.”
The Andersons Humic DG Organic Soil Amendment, 40 lb
The Andersons Humic DG is the strongest fit in this group for buyers prioritizing a high stated humic content and a dry amendment for extensive areas. Its 70% humic content and listed coverage of up to 40,000 square feet set it apart from PowerGrow Systems’ 10-pound granules, which do not state a humic percentage or coverage. The 40-pound format can suit a lawn or larger planting area, and the product may be used alone or alongside a fertilizer program. Its OMRI listing also distinguishes it among the dry choices. The tradeoffs are scale and access: a large bag may be more than a small garden needs, and the listing says it is not for sale in South Dakota. No application rate is included in the supplied data.
Pros:- Contains a stated 70% humic content
- Coverage listed up to 40,000 square feet
- OMRI listed
- Can be used alone or alongside a fertilizer program
Cons:- The 40-pound bag may be excessive for small gardens
- Not for sale in South Dakota
- Supplied product data does not state an application rate
Best for: Lawn owners and landscape managers who want a high-humic-content granular amendment for a large area and already have a way to apply dry products.
Not ideal for: Small-space gardeners who have no use for a 40-pound bag, buyers needing a clearly stated application rate, and residents of South Dakota.
- Form:Granules
- Weight:40 pounds
- Humic content:70%
- Coverage:Up to 40,000 square feet
- Organic listing:OMRI listed
- Target:Plants
- Use with fertilizer:Can be used alone or alongside a fertilizer program
- Availability restriction:Not for sale in South Dakota
Our verdict“Pick The Andersons Humic DG for a large treatment area and high stated humic content, provided the bag size and regional availability work for you.”
How We Picked
I compared the 15 listed products by form, intended use, package size, and ingredient positioning, since those factors shape how a humic acid amendment fits into a real lawn or garden routine. I also distinguished humic-focused soil conditioners from products that include seaweed or lawn nutrients, rather than treating every item as the same kind of fertilizer. Where the supplied product information does not specify concentration, coverage, or application rate, I avoid assuming those details.
The ranking favors options with a clear role and a practical match between format and likely use. Wallace Organic Wonder DS-80 leads for its soluble powder format; Soil Hume earns a standout role as a humic-and-seaweed blend; and The Andersons Humic DG serves buyers seeking a granular lawn amendment. Other entries rank according to their use case, format, and available size choices, with tradeoffs such as less flexibility, limited quantity, or a less direct fit for buyers seeking humic acid alone. I would verify the product label for dilution, application timing, and coverage before buying.
| humic acid fertilizer | Form |
|---|---|
| Wallace Organic Wonder DS-80 S | Water-soluble powder |
| Simple Lawn Solutions Soil Hum | Liquid concentrate |
| FoliarTech Organic Humic Acid | Liquid concentrate |
| Bloom City Humic Acid Liquid S | Liquid |
| Simple Lawn Solutions 15-0-15 | Liquid fertilizer |
| Down To Earth Organic Granular | Granules |
| GS Plant Foods Liquid Humic Ac | Liquid |
| PowerGrow Systems Humic Acid F | Powder |
| Bloom City Humic Acid Liquid S | Liquid |
| Bloom City Humic Acid Liquid S | Liquid |
| Farm Made Organics Humic+ Liqu | Liquid |
| Humic Acid Fertilizer and Soil | Granules |
| GS Plant Foods Humic Acid Soil | Liquid concentrate |
| Farmer’s Secret Organic Soil R | Liquid |
| The Andersons Humic DG Organic | Granules |
Factors to Consider When Choosing Best Humic Acid Fertilizers
Choosing among humic acid products is less about finding one universal winner and more about matching the product to your soil, equipment, and application habits. These broader checks can help prevent buying an inconvenient format or expecting a soil amendment to replace a fertilizer.
Match the format to your application routine
Liquid products can suit sprayers and watering routines, while granular amendments may be easier to spread across larger lawn areas without mixing a tank. Soluble powders offer a dry-storage option but still require dissolving and careful measuring. Pick the format your equipment can handle consistently, not the one that sounds easiest on the package. A liquid is not automatically ready to use; many concentrates need dilution. Granules also need label-specific application instructions and may require watering in. If you have a small garden or no spreader, a large granular bag may be more hassle than benefit.
Separate soil amendment goals from fertilizer needs
Humic acid products are generally sold as soil amendments or conditioners, while a conventional fertilizer supplies plant nutrients such as nitrogen, phosphorus, or potassium. A product like Simple Lawn Solutions 15-0-15 has a distinct nutrient role, so do not treat it as interchangeable with a humic-focused amendment. Start by identifying whether the immediate need is nutrient supply, soil conditioning, or both. If you already fertilize on a schedule, adding another nutrient-bearing product can affect your overall program. Read the guaranteed analysis and ingredient list rather than relying on broad words such as “fertilizer” or “revitalizer.”
Compare concentration and coverage, not bottle size alone
A larger container does not necessarily cover more area if the product is less concentrated or calls for heavier application. Before comparing package sizes, find the label’s application rate, dilution instructions, and stated coverage. This is especially useful when comparing Bloom City’s different sizes or a small concentrate with a gallon container. Avoid estimating value from ounces alone, since formulas and directions can differ. If coverage is not clearly stated, check the manufacturer’s label or product documentation before planning a season’s supply. Buying too much can leave an opened product sitting unused; buying too little can interrupt a planned treatment schedule.
Check whether a blend fits your soil plan
Some products pair humic acid with other ingredients, such as seaweed, while others are positioned more directly as humic amendments. A blend may appeal if you want a combined application, but it makes the product less suitable when you want to isolate one input or already use a separate supplement. Review every listed ingredient and follow the label’s compatibility guidance before mixing products. Avoid assuming that a longer ingredient list means a better match for your soil. If you are changing several parts of your routine at once, it can be harder to tell which change affected the result. Choose a straightforward formula when simplicity and controlled application matter most.
Buy for the area you can treat and store
Large packages can make sense for broad lawn applications, but they may be impractical for containers, raised beds, or occasional use. Smaller packages let a first-time buyer try a product without committing to a large quantity, though they may require more frequent repurchasing for ongoing use. Check storage instructions and keep powders and concentrates in suitable conditions after opening. Think about how often the label calls for use, not just the size of the area. A product that is easy to store and measure is more likely to fit a consistent routine. Choose a larger format only when the application schedule and treated area justify it.
Frequently Asked Questions
Can humic acid replace my regular lawn fertilizer?
Not automatically. Humic acid products are commonly marketed as soil amendments, while a lawn fertilizer supplies defined plant nutrients such as nitrogen or potassium. The 15-0-15 product in this roundup has a different nutrient role from the humic-focused options, so check its label before adding it to an existing program. If your lawn needs nutrients, base that decision on soil conditions and the fertilizer’s analysis rather than assuming a humic amendment will fill the gap. Follow each product’s timing and application directions to avoid overlapping treatments.
Should I choose a liquid, powder, or granular humic acid product?
Choose based on your equipment and where you plan to apply it. Liquids can fit a sprayer or watering routine, soluble powder needs mixing, and granules can suit broader ground coverage when you have a way to spread them evenly. The product format does not tell you by itself how much area it covers or how often to apply it. Compare label directions before deciding, especially if you want to use the product on both a lawn and garden beds. The easiest format to measure and apply consistently is often the most practical choice.
Is a humic acid product with seaweed better than one with humic acid alone?
Not for every buyer. A blend such as Soil Hume combines humic acid with seaweed, which may suit someone looking for a product with multiple components in one application. A more focused humic amendment may be a better fit if you want to control each input separately or already use another seaweed product. Compare the full ingredient list and label directions rather than judging the blend by the number of ingredients. Consider your existing lawn or garden program so you do not add overlapping products without a clear reason.
How do I decide what package size to buy for a first application?
Estimate the area you intend to treat, then use the product’s application rate and coverage information to calculate the amount needed. Do not choose solely by package size: a small concentrate can cover more area than expected, while a larger container may require a heavier dose. A smaller package is a sensible trial choice when you are unsure about fit or have a limited application area. For a large lawn, compare the total amount required across the planned schedule before choosing a larger format. If the label does not state coverage clearly, verify it with the manufacturer before purchasing.
Can I apply humic acid to lawns and garden beds with the same product?
Some products are presented for both lawns and gardens, but that does not mean every formula has the same directions or is suitable for every planting situation. Check the label for approved sites, application rates, and any instructions for edible crops or container plants. A lawn-scale granular product may be awkward for small beds, while a small liquid bottle may not be practical across a large yard. Also check whether a blend includes ingredients that affect how you want to manage different areas. When using one product across multiple sites, follow the directions for each site rather than applying a single guessed rate everywhere.
Conclusion
For most buyers seeking a humic-focused product in a mixable dry form, I would start with Wallace Organic Wonder DS-80 as the best overall. Simple Lawn Solutions Soil Hume is my pick for buyers who want a liquid blend that also includes seaweed, while The Andersons Humic DG is the clearest fit for those who prefer a granular lawn amendment. For a smaller first purchase, the 8-ounce Bloom City option gives beginners a lower-commitment format; compare its label and coverage with the larger Bloom City sizes before deciding. The best value depends on the application rate and coverage rather than package size alone, so I would check those details before naming a winner for your use. For broad lawn treatment, look first at larger liquid or granular formats; for small gardens or occasional use, favor a manageable package and straightforward directions. Match the product to your application method and soil plan, then follow its label.
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