SKU: 49384922261
plant root growth fertilizer

plant root growth fertilizer N-Ext RGS

Sale price$23.62 Regular price$26.25
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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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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 Root Growth Stimulant (with Humic Acid and Sea Kelp) Great for soil health and root stimulation Available in multiple sizes* Product Description: RGS Root Growth Stimulant with sea kelp and humic acid is

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
  • Root Growth Stimulant (with Humic Acid and Sea Kelp)
  • Great for soil health and root stimulation
  • Available in multiple sizes*

Product Description:

RGS™ - 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 all of 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 the 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: RGS Info
  • Link to 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: 49384922261

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Mike
Fort Morgan, US
★★★★★ 5
Tough as hel
Color: Black/Black/Digital
This watch hasn’t left my wrist in 5 months and has been through hell and back. Has all the features I’ll ever need. Bought a second one to keep in case they discontinue it in the future.
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Reviewed in the United States on April 14, 2026
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Gavin
Whiting, US
★★★★★ 5
Its ok
Color: G2856-all silver
Its a nice watch but the band feels a little cheap the adjustment tool broke on me but overall nice looking watch for the money UPDATE: they are giving me a watch of my choice instead of a refund i really love this watch it looks amazing iv been getting compliments left and right 5/5 star's would buy again
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Reviewed in the United States on May 28, 2026
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Corey
West Palm Beach, US
★★★★★ 5
Amazing Quality & Price
Color: Black Band and Blue Face, Color: Black Band and Blue Face
Exactly as described. It looks absolutely stunning in person. It's very lightweight. Adjustable metal band with tool for ejecting the pins and band pieces. Movement around my wrist feels great and not pinching my arm hairs. Extremely easy to use and set up. Fits perfectly after making some minor adjustments on the band. Battery life promise of 10 years.
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Reviewed in the United States on May 17, 2026
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Gustavo Salinas
Massapequa, US
★★★★★ 5
Not bad for a watch under 50 bucks
Color: G2856-all silver, Color: G2856-all silver
Im not sure what material this watch is made of but the band doesn’t sound weird, it doesn’t feel like a very solid watch but it really looks fancy and nice i really like it a lot,plus lets be realistic you can have high expectations for 40 bucks, is the first one I bought from this brand, I would like to buy yhe automatic one that is around 150 but i want to try the cheapest one first and see if i like it or not, so far im happy i will update in some time to see how’s holding up
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Reviewed in the United States on May 24, 2026
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Karol
Whiting, US
★★★★★ 4
Elegant and affordable—exceeds expectations.
Color: Black Band and Blue Face
⭐⭐⭐⭐☆ (4/5) A very elegant watch offering excellent value for money. The blue design with gold accents looks modern and eye-catching—ideal for any occasion. The materials feel high-quality, and it keeps time with good precision. As a minor note, some of the sub-dials are decorative, and the strap can be a bit tricky to adjust. Overall, a very good purchase for the price. 👍
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Reviewed in the United States on March 17, 2026

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