SKU: 25562672739
foundation turf herbicide

foundation turf herbicide N-Ext RGS

Sale price$25.59 Regular price$28.43
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

foundation turf herbicide N-Ext RGSN Ext RGS RGS stands for Root Growth Stimulant, and thats exactly what it does. This bio stimulant is packed with hormones from sea kelp that stimulate roots and stolons rhizomes coupled with chelating humic acid. One gallon covers up to 42,600 sq ft Analysis is 0 0 1:: N P K Root Growth Stimulant (with humic acid and sea kelp) Great for soil health and root stimulation Available in multiple sizes* Product Description: RGS is a root growth stimulant

N-Ext RGS™ - RGS stands for Root Growth Stimulant, and that’s exactly what it does. This bio-stimulant is packed with hormones from sea kelp that stimulate roots and stolons/rhizomes coupled with chelating humic acid.

  • One gallon covers up to 42,600 sq ft
  • Analysis is 0-0-1::N-P-K
  • Root Growth Stimulant (with humic acid and sea kelp)
  • Great for soil health and root stimulation
  • Available in multiple sizes*

Product Description:

RGS is a root growth stimulant with sea kelp and humic acid is our primary bio-stimulant offering for use in lawns and landscapes. Formulated by John Perry of Greene County Fertilizer Co, RGS is the foundation of all Lawn Care Nut and Yard Mastery programs. 

If you are new to spraying liquids on your lawn, this is a great one to start with. It won't "burn" the lawn, or anything like that - and RGS is the best to start with anyway since it aids in soil health and stimulates roots in turf.

If you have challenges with your grass holding on during summer heat, getting RGS into the soil will help it through the stress. RGS is truly the backbone of the bio-stimulant program, hands down, and has the highest concentration of sea kelp hormones in the line. It was designed to increase rooting and decrease stress pressure caused by heat and drought. It will also feed microbial life in the soil which helps to optimize your fertilizer treatments.

"N-Ext" is the name of this line of products, and N-Ext stands for "Nitrogen Extension." RGS, Root Growth Stimulant, is kind of like the "base layer" of that line because it contains humic acid and sea kelp, the two primary bio-stimulants we recommend. The biologically active material contains humic acid and sea kelp to aid in initial spring green-up, buffer and extend nitrogen release rates, and add oxygen to the soil profile for greater nutrient uptake.

*Size options and coverage: 

  • 1 Single Quart (32 oz) = covers up to 10,650 sq ft
  • 1 Single Gallon (128 oz) = covers up to 42,600 sq ft
  • 2 Gallon Pack (256 oz) = covers up to 85,200 sq ft
  • 4 Gallon Pack (512 oz) = covers up to 170,400 sq ft 
  • 5 Gallon Pack (640 oz) = covers up to 213,000 sq ft  

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

Check out our other Greene County products here!

Application Information:

You will need to water in RGS if you apply with a backpack/pump sprayer. If you are using a quart hose-end sprayer, here is a video with instructions. 

RGS can be applied at any time during the growing season on 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

42,600 sq ft at the low rate (3 oz/1,000 sq ft)
21,300 sq ft at the high rate (6 oz/1,000 sq ft)

Application  Details

Mix 3 oz- 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: RGS 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, a free sticker 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: 25562672739

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4.0 ★★★★★
Based on 5 reviews
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Product Reviews
E
Verified Purchase
Erik Evans
Pawtucket, US
★★★★★ 4
Nice
Size: 5.1 Ounce (Pack of 2)
Nice moisturizer. Couldn’t find it at the grocery store
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 31, 2025
A
Verified Purchase
Aisha D
Massapequa, US
★★★★★ 5
Life-saver for hands in pain
Size: 5.1 Ounce (Pack of 2)
This is my favorite hand cream. We're in PA and I keep a tube of this by the kitchen sink, in my bedroom, the bathroom, and in my car. I use it all the time and it saves my hands. I discovered it by chance at a store one time and I've tried many products (used to work in Healthcare so was constantly hand-washing). I like O'Keefe's Working Hands all right, and Gold Bond healing hand cream used to be my favorite, but this replaces both. It's so helpful for my 5 year old, too, whose hands get super dry and cracked if we don't keep up with this. It's great stuff. Ever since I discovered it, I haven't been able to find it in stores again. It's always out of stock, so I guess others have figured it out as well!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
L
Verified Purchase
Lily Reardon
Omaha, US
★★★★★ 5
Smells amazing!
Size: 3.4 Fl Oz (Pack of 2)
Smells amazing, great size, good quantity for what you pay. Hydrating not greasy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
A
Verified Purchase
Audra K
Grantham, US
★★★★★ 5
Holy Grail Moisturizer for Rosacea
Style: Restorative Protective Cream-3.3 Fl Oz
In seeing so many negative reviews I felt compelled to weigh in as this is my favorite moisturizer. I have very dry, menopausal skin. Additionally, I have rosacea which seems to have been a nice gift from said menopause (you can only laugh, right?). It's very common for those of us in our 50's to have a compromised skin barrier and when an issue like rosacea is present, even more so. Because of all this my skin is very intolerant to most moisturizers and nearly all actives (over the last few years I've had to discontinue my retinols and chemical exfoliators). While ingredients like ALA's, petrolatum, mineral oil, parafin/bees wax, and lanolin are well tolerated and known to be quite soothing, they don't hydrate very well as they are more occlusive than moisturizing. Enter this product. Magically, it does both! It's marketed as a protective cream, which again implies occlusive, but it penetrates like no other. Gone is the tight, dry feeling that persisted even when I had a heavy layer of product on my skin (my previous moisturizer was Eucerin Original Healing Cream -- which still has its uses -- because it was the only thing I could put on my skin outside of squalane oil during a flare). Now, no topical can cure rosacea. However, the right product can calm the skin, repair the damaged lipid barrier, and improve its appearance. This moisturizer does just that and it's become my holy grail. Since starting this I've also added in the Cicalfate Serum which has only aided in repairing my skin. Another Avene product that works great for me is the XeraCalm Balm which helps with itching. I use all three of these daily and they've really helped fix the secondary issues that come with rosacea. As for the complaints about it being greasy or too heavy. I can see this not working for people with normal or oily skin (or perhaps only in moderation). But my skin loves the heavier weight and because one of the ways I soothe a flare is to keep a tiny mister bottle on hand and repeatedly spray my face so I have to guard against the drying effects of evaporation. These products are so lipid heavy that I can wet my face all day long without worrying about that, though I do reapply throughout the day. As for the watery consistency issue, I haven't had that problem but it does caution on the packaging not to expose the product to temperatures below 41 degrees F (5 C). I suspect that if it gets too cold either because of the weather or because of whatever warehouse it sat in during transit it will separate. Maybe open the package and before squeezing some out look to see if it has split and then shake it up/message the tube. So, if you have skin like mine don't hesitate to try this product. I'm leaving this absurdly long review for my struggling brothers and sisters out there with rosacea in hopes that it provides some relief! Happy moisturizing, internet strangers. ;)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2025
T
Verified Purchase
Tobyizme
Bozeman, US
★★★★★ 4
Possible solution to seperation
Style: Restorative Protective Cream-1.3 Fl Oz
I love this product so much, but, like everyone else the water HEAVILY separated. A lot of water just shot out immediately and as i've used the cream it has felt more and more thick bc of that, shaking the tube or not. POSSIBLE SOLUTION: I actually think the company could salvage this problem by upgrading packaging to a Cosmetic JAR and then customers could take a toothpick and stir if separation has occurred by the time of purchase. I hope to try this with my next tube, just toothpaste squeezed everything out into a nice cosmetic jar and stir the water back into the product. This is such a simple solution that could really solve the product waste. This refreshes my skin, doesn't break me out, and is lovely. I break out so easily, and being middle aged my skin really requires a dense help with moisture. <3
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

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