[N-Ext] RGS™ - Root Growth Bio-Stimulant with Sea Kelp

[N-Ext] RGS™ - Root Growth Bio-Stimulant with Sea Kelp

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This is a 5-Gallon Jug

N-Ext RGS™ Liquid Root Growth Stimulant is 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.

Now available in single gallons (new for 2021) as well as 4 and 5 gallon packs.

"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 the "base layer" of that line because it contains humic acid and sea kelp. 

The biologically active material contains Humic Acid and Sea Kelp to aid in initial spring green up, to buffer and extend nitrogen release rates, and to add oxygen to the soil profile for greater nutrient uptake.

RGS - Stands for Root Growth Stimulant and that’s exactly what it does.

This product is packed with hormones from sea kelp that stimulate roots and stolons/rhizomes coupled with chelating Humic Acid.

It’s truly the backbone of the Bio-Stim program, hands down, and has the highest concentration of Sea Kelp hormones in the line.

It’s never a bad time to apply RGS to your soil. If you want to stimulate roots, rhizomes and/or stolons (depending on grass type) then RGS is the best place to start!


Download the [N-Ext] RGS™ PDF Label Here



Product can be applied as often as monthly and should be watered in so it gets into the soil.

The recommended application rate is 3 oz per 1,000 sq ft.

1 gallon = 128 oz

2.5 gallons = 320 oz

5 gallons = 640 oz

At the app rate of 3 oz/1,000 sq ft, you will get:

  • 42,600 sq ft of coverage from a single gallon
  • 106,600 sq ft of coverage from a 2.5-gallon jug
  • 213,300 sq ft of coverage from the full 5 gallons 

Storage: Store in a cool dry place away from direct sunlight. Product will store for 2 years under warehouse conditions.

    IMPORTANT SHIPPING INFORMATION: Shipping is included in the price. 

    We can not currently ship to Alaska, Hawaii, Oregon and/or PO Boxes

    Typically delivered in 4-7 business days.

    Free stickers with every order.

    When you purchase you'll also receive my N-Ext product guide on when and how much to put down (via email).