[N-ext] Bio-Stimulant Pack | 4 Gallons

$116.00 $144.96
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[N-Ext] Bio-Stimulant Pack has four products that supercharge your lawn growth, improve soil chemistry, and stimulate roots, rhizomes, and/or stolons in your grass. 

  • One pack will cover a 5,000 sq ft lawn for 1 year (see details below)
  • Includes one gallon each of RGS, Humic12, MicroGreene, and Air-8
  • The Bio-Stim Pack is the "starter pack" of N-Ext products

In the Bio-Stimulant Pack, you’ll get 4-Gallons in four 1 gallon bottles

  • 1 Gallon of N-Ext 0-0-1 RGS
  • 1 Gallon of N-Ext 0-0-1 Humic-12
  • 1 Gallon of N-Ext 0-0-2 Micro Greene
  • 1 Gallon 0-0-5 Air-8

This pack, loaded with humic, kelp, and micronutrients PLUS liquid aeration.
Frequently touted as “Lawn Joo-Joo” and “Unicorn Pee” by myself and other members of the Lawn Care Nut community - these N-Ext products are the real deal. Many of our newly minted Lawn Care Nuts ask, what do bio-stimulants do, and that’s a good question.

This combo pack optimizes and unlocks nutrients in the soil so that your turf roots can pull out more naturally existing soil nutrients. At the same time, this will help you create an ecosystem that self-sustains cohesively and needs very little outside input other than the occasional dusting of nutrients.

The Bio-Stim Pack is the "starter pack" of N-Ext products designed to get you moving on the right track towards more healthy, optimized soil.

[N-Ext] RGS Stands for Root Growth Stimulant and that’s exactly what it does. This biostimulant is packed with hormones from sea kelp that stimulate roots and stolons/rhizomes coupled with chelating humic acid.

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.

N-Ext 0-0-2 MicroGreene™ is a micronutrient fertilizer with humic and sea kelp. If you have a soil test showing micronutrient deficiencies then this is your go-to product to get your levels moving in the right direction.

N-Ext Air-8™ Liquid Aeration is designed to create space in the soil, increase water penetration, and encourage deeper rooting to drive more oxygen into the topsoil profile.

For other sizes or variety packs:
Other size options
You can SAVE MONEY with our “mix and match” in the 4-Gallon and 5-Gallon packs.

Application Information:
You will need to water in this product if you apply with a backpack/pump sprayer, if you use an Ortho hose-end sprayer, here is a video with instructions.
Can be applied at any time during the growing season for cool and warm-season lawns. Custom timing and recommendations are available in our app. Click here to download.

These products can be used 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.


See label details below for specific coverage details

Application  Details

See label details below for specific application details

Water-In  Instructions

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

Shipping Information:

Shipping costs

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

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

Yes, free stickers with this item.

Typical Delivery Time

4 - 7 business days

Product Type

Liquid Concentrate

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