SKU: 82086776133
plant root growth fertilizer

plant root growth fertilizer N-Ext RGS

Sale price$18.66 Regular price$20.73
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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30

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Description

plant root growth fertilizer 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: 82086776133

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KRISTA R
Lexington, US
★★★★★ 5
Very powerful!
Great choice - lots of power!!
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Reviewed in the United States on May 28, 2026
L
Verified Purchase
LitCritic
Belleville, US
★★★★★ 5
Powerful mixer, and the company stands behind the product
I've had a few of these mixers from other companies and they broke quickly and then couldn't even get a response when contacting the company. However, when I had an issue with this one Typhur responded immediately and totally resolved the issue. Good to know that the company stands by their products. This particular unit is more powerful than the other ones I've owned and really works well through thick mixes, with little stalling. The one-button operation, from the top, is naturally suited to the task. Another one I owned had the speed buttons on the side and it was pretty awkward when you're in the middle of mixing something. Since I use Eneloop Pro rechargeable batteries I don't have to worry about setting it up near a socket to plug in a USB cable. My counter top is crowded enough as it is.
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Reviewed in the United States on April 23, 2026
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Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 1
It was good until it wasn't. :(
Purchased this in February. It worked great while it worked. It started stopping periodically as I would use it around the first of April. I thought it could be the batteries so I changed the batteries. It is still stopping as I use it. It will spin for a second or two then stop. I have to press the button several times to get it to start again only for it to run a few seconds at a time.
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Reviewed in the United States on May 1, 2026
F
Verified Purchase
fox
Fort Morgan, US
★★★★★ 5
10/10 product. Best on the market.
Color: Stainless Steel, Color: Stainless Steel
This thing is bomb. I can confirm that it is legit and cooks way more effectively than a lot of of the other options, especially for oven air fryers, but even against basket air fryers we originally got a ninja dual basket, vertical stacked air fryer and had to return it because of a weird whining noise. I’m so glad we did because this thing has been killer. The thermometer option for reverse searing stakes makes it so easy to get it to the exact temperature and then sear it for 90 seconds on each side. even in general regular air frying stuff is great in here. Pretty easy to clean everything fits in the dishwasher, but also it’s easy to clean with a sponge. It’s pretty big and can fit a lot of things and the best part is The front end is very user-friendly. My fiancé had a hard time figuring out working the ninja, she found this to be much more intuitive to work with
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Reviewed in the United States on June 7, 2026
J
Verified Purchase
J. D. Rogers
Lake Worth, US
★★★★★ 5
Great performance, versatile, quiet, reasonably priced.
Color: Stainless Steel
Terrific air fryer / oven. I bought it to replace my smaller air fryer. It does that, and more. Since I only have one oven in my kitchen, this serves as a backup. Large enough to many things. Air Fry / Roast / Bake etc. The wifi connectivity is helpful -- lets me set up and run a task, and lets me know when done. The included and integrated wireless temperature probe is great. Set up your roast and forget it. Get a notification when done. It is also quiet! Great buy.
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Reviewed in the United States on January 5, 2026

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