SKU: 10947976701
liquid humic acid organic fertilizer

liquid humic acid organic fertilizer N-Ext Humic12

Sale price$18.13 Regular price$20.15
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

liquid humic acid organic fertilizer N-Ext Humic12N Ext Humic12 is one of the primary bio stimulants used to improve overall soil health. The 12% concentration in this product is much higher than most currently available to DIYers. One gallon covers up to 21,300 sq ft Analysis is 0 0 1:: N P K Contains 12% humic acid bio stimulant Great for root growth, chlorophyll content, nutrient uptake, soil structure, water retention, and plant quality Available in multiple sizes* Product Description: Humic12

N-Ext Humic12™ is one of the primary bio-stimulants used to improve overall soil health. The 12% concentration in this product is much higher than most currently available to DIYers.

  • One gallon covers up to 21,300 sq ft
  • Analysis is 0-0-1::N-P-K 
  • Contains 12% humic acid bio-stimulant
  • Great for root growth, chlorophyll content, nutrient uptake, soil structure, water retention, and plant quality
  • Available in multiple sizes*

Product Description:
Humic12 liquid humic acid product is an excellent addition to any fertilizer program for correcting soil issues. Humic acid is essentially the final remains of organic matter, primarily plant material that has decayed over time and broken down into its simplest form by microbes. If you think poop is organic, natural, and good for plants, then think of humic acid as microbe poop. Super small, super-rich, and super for your soil (but no foul smell). 

Humic acid is carbon, oxygen, hydrogen, nitrogen, phosphorus, and sulfur, and the only reason it’s acid is that it’s a hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance. And that is what makes humic acid so awesome!

It is known as a “chelator” (pronounced Kee-Lay-Tor), which in layman’s terms just means that it helps other nutrients become more available to the plants to be utilized. Think of it as a bridge between nutrients and your turf’s roots. To put it simply, applying humic acid to your lawn and watering it into your soil helps the turf roots extract more of the naturally existing nutrients from the soil AND makes the fertilizer you apply more efficient. If we were talking in automotive terms, it would be like adding a shot of nitrous to increase your speed.

The process of N-Ext Humic12 stands out against the competition. Their “long brew” technique using high-quality oxidized lignite, allows for a cleaner, more flowable product with enhanced biological activity.
The benefits of N-Ext Humic12 are:

  • Increased root growth
  • Increased chlorophyll content
  • Increased nutrient uptake
  • Improved soil structure
  • Improved plant quality

*Size options and coverage: 

  • 1 Single Quart (32 oz) = covers up to 5,325 sq ft
  • 1 Single Gallon (128 oz) = covers up to 21,300 sq ft 
  • 2 Gallon Pack (256 oz) = covers up to 42,600 sq ft
  • 4 Gallon Pack (512 oz) = covers up to 85,200 sq ft
  • 5 Gallon Pack (640 oz) = covers up to 106,500 sq ft

You can SAVE MONEY with the “mix and match” in our Build-a-Box options.

For a list of all Greene County products, here is a link to the other options.

Application Information:
You will need to water Humic12 in if applied with a backpack/pump sprayer. If you are using a quart hose-end sprayer, here is a video with instructions. 

Humic12 can be applied at any time during the growing season for all grass types, including the following: 

  • Cool-Season Lawns - Kentucky Bluegrass, Turf Type Tall Fescue (all fescues), Ryegrass.
  • Warm-Season Lawns - Bermuda, St Augustine, Zoysia, Centipede, Bahia.

Custom bio-stimulant timing and recommendations are available in our free Yard Mastery app. Click here to download.

 Coverage/Gallon

21,300 sq ft at 6 oz/1,000 sq ft

Application  Details

Mix 6 oz per gallon of water in a backpack/pump sprayer and spray that evenly across 1,000 sq ft of lawn.

Apply every 30 - 45 days

Water-In  Instructions

Water into the soil within 24 hours with 1/4" of rainfall or irrigation.

Do not apply if your lawn is saturated. Rinse excess off sidewalks and driveways to avoid staining.

  • Label / Specs / SDS / Info: Humic12 Info,  Bio-Stimulant Guide
  • Package Includes: Quart, One, Two, Four Single Gallon(s), or 5-Gallon (two 2.5-gallon bottles) based on selection.
  • Storage: Store in a cool, dry place away from direct sunlight. The product can be stored for 2 years under warehouse conditions.

Shipping Information:

Shipping Costs

Included for most states within the U.S.
NO P.O. Boxes

State Restrictions
Alaska (AK), California (CA), Hawaii (HI), and Oregon (OR)
Stickers

Yes, free stickers with this item

Typical Delivery Time

4 - 7 business days

Product Type

Liquid Concentrate

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 10947976701

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4.6 ★★★★★
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Marina Gulley
Whiting, US
★★★★★ 4
Good product , but
Size: 1.3 Fl Oz (Pack of 1), Size: 1.3 Fl Oz (Pack of 1)
It seems to be a good product and it’s not too heavy , but still caused few breakouts here and there . Also, Avenue always has protective foil on their cream , this one didn’t have (I replaced it but new one also didn’t have it). Also, it goes away really fast because it’s only 1.3 ounces.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
A
Verified Purchase
Avid Reader
Alexandria, US
★★★★★ 5
Hydrating
Size: 1.3 Fl Oz (Pack of 1)
Dermatologist recommended. Works very well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
V
Verified Purchase
Violet
Lowell, US
★★★★★ 5
Gold Star
Size: 1.3 Fl Oz (Pack of 1)
This cream is truly gentle and healing for a compromised skin barrier. I prefer this cream in the winter, when the weather is dry, and after procedures like microneedling or laser. It has never irritated my skin, and does soothe and heal. The La Roche Posay cicalfate cream is also excellent, I think it is slightly less rich, so I prefer that in humidity or the summer.
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Reviewed in the United States on March 2, 2026
N
Verified Purchase
NikkiB
Carnegie, US
★★★★★ 5
Overpriced but it works.
Size: 1.3 Fl Oz (Pack of 1)
I hate that I love this product. It's stupid expensive. But it's great for broken/damaged/recovering skin. I've used it post microneedling and it is the only thing that soothes, hydrates, and doesn't sting raw, red skin. Great for rashes/hives and allergic reactions too. Luckily a thin layer is often enough to do the trick. so it lasts a long time I wouldn't use for everyday moisture, but when your skin is angry, this stuff works. (Overpriced? Yes. Witchcraft? Maybe. Does it work? Yep.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
E
Verified Purchase
English farmhouse
New York, US
★★★★★ 5
Works wonder
Size: 1.3 Fl Oz (Pack of 1)
Amazing product. The scars from my daughter acne are mostly gone after 1 month. We will purchase again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026

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