Bio-Stimulant Pack | Four Gallons | N-Ext

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$120.99
Regular price
$125.99
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$120.99
Subtotal: $120.99
Bio-Stimulant Pack | Four Gallons | N-Ext

Bio-Stimulant Pack | Four Gallons | N-Ext


N-Ext Bio-Stimulant Pack | Four-Gallon Lawn and Soil Health Kit

Improve lawn and soil health with the N-Ext Bio-Stimulant Pack, a four-gallon lawn care kit that supports root development, nutrient availability, micronutrient levels, water penetration, and deeper turf rooting. This starter pack includes one gallon each of RGS, Humic-12, MicroGreene, and Air-8—four complementary liquid products for cool-season and warm-season lawns.

What Is Included?

The N-Ext Bio-Stimulant Pack includes four 1-gallon bottles:

  • N-Ext 0-0-1 RGS™: Root Growth Stimulant with sea kelp and humic acid to support roots, stolons, and rhizomes.
  • N-Ext 0-0-1 Humic-12™: A concentrated humic acid product designed to support overall soil health and nutrient availability.
  • N-Ext 0-0-2 MicroGreene™: A micronutrient fertilizer containing humic acid and sea kelp. 
  • N-Ext 0-0-5 Air-8™: Liquid aeration designed to improve water penetration, create space in the soil, and encourage deeper rooting.

Key Benefits

  • Supports healthy lawn roots, rhizomes, and stolons
  • Helps improve soil chemistry and nutrient availability
  • Provides humic acid, sea kelp, and micronutrients
  • Helps promote deeper turf rooting
  • Supports water penetration into the soil profile
  • Includes four complementary N-Ext lawn care products
  • Suitable for cool-season and warm-season grass types
  • Ideal starter pack for DIY lawn care and soil optimization
  • Can be used with a pump, battery, or hose-end sprayer

How N-Ext Bio-Stimulants Work

Bio-stimulants support the biological and physical conditions that help turfgrass use available nutrients more effectively. The products in this pack are designed to complement one another by supporting root growth, soil health, micronutrient availability, and water movement through the soil.

RGS uses sea kelp and humic acid to support root development and the growth of stolons and rhizomes. Humic-12 helps improve overall soil health and nutrient availability. MicroGreene provides micronutrients and is especially useful when a soil test identifies micronutrient deficiencies. Air-8 is a liquid aeration product designed to improve water penetration and encourage deeper roots by helping create space in the topsoil profile.

Compatible Grass Types

The N-Ext Bio-Stimulant Pack can be used on labeled cool-season and warm-season grasses, including:

  • Cool-season grasses: Kentucky bluegrass, Turf-type tall fescue, Fine fescue, and Ryegrass
  • Warm-season grasses: Bermudagrass, St. Augustinegrass, Zoysiagrass, Centipedegrass, and Bahiagrass

Coverage and Size

Coverage is based on the lowest application rate. Always use the application rate and coverage information listed on the current product label.

  • Pack size: Four 1-gallon bottles (4 gallons total)
  • RGS: 6–9 oz per 1,000 sq ft; one gallon covers up to 21,300 sq ft
  • Air-8: 6–9 oz per 1,000 sq ft; one gallon covers up to 21,300 sq ft
  • Humic12: 6 oz per 1,000 sq ft; one gallon covers up to 21,300 sq ft
  • MicroGreene: 3–6 oz per 1,000 sq ft; one gallon covers up to 42,600 sq ft

Application Information

  • Apply the products according to each product label and rate. 
  • The products may be applied during the growing season to both cool-season and warm-season lawns.
  • Use a battery, pump, or hose-end sprayer.
  • Products applied with a battery or pump sprayer should be watered into the soil after application. Water the treated area within 24 hours with approximately ¼ inch of rainfall or irrigation.

For individual product application rates, mixing instructions, and hose-end sprayer use, refer to the product labels and application resources. Custom application timing and recommendations are also available through the free Yard Mastery app Legacy Program. 


Product Specifications

  • Form: Liquid Concentrate
  • Application Rates:
    • RGS: 6-9 oz per 1,000 sq ft
    • Air-8: 6-9 oz per 1,000 sq ft
    • Humic12: 6 oz per 1,000 sq ft
    • MicroGreene: 3-6 oz per 1,000 sq ft
  • Gallon Coverage:
    • RGS: up to 21,300 sq ft
    • Air-8: up to 21,300 sq ft
    • Humic12: up to 21,300 sq ft
    • MicroGreene: up to 42,600 sq ft
  • Storage: Store in a cool, dry location away from direct sunlight for up to 2 years. Protect from freezing.

Frequently Asked Questions

What is the Yard Mastery Bio-Stimulant Pack?
The Yard Mastery Bio-Stimulant Pack is a four-gallon soil and lawn improvement bundle containing one gallon each of RGS, Humic12, Air-8, and MicroGreene. Together, these products are designed to support root development, improve soil health, increase water penetration, and help turf make better use of available nutrients.

What does each product in the Bio-Stimulant Pack do?
RGS (Root Growth Stimulant) uses sea kelp and humic acid to support roots, stolons, and rhizomes while helping turf handle heat and drought stress. Humic12 contains a high concentration of humic acid to help make nutrients more available to plant roots. Air-8 is a liquid aeration product designed to create space in compacted soil for air, water, and nutrients. MicroGreene supplies micronutrients, potassium, iron, humic acid, and sea kelp to support turf color and growth.

How do you apply the Yard Mastery Bio-Stimulant Pack?
Apply the products according to their individual product labels using a pump sprayer, backpack sprayer, or hose-end sprayer. Each product can be applied during the growing season, and the pack is suitable for many cool-season and warm-season grasses. For personalized application timing and recommendations, use the free Yard Mastery app.

Does the Bio-Stimulant Pack need to be watered in?
Yes. When applying the products with a pump or backpack sprayer, water them into the soil within 24 hours using approximately ¼ inch of rainfall or irrigation. A hose-end sprayer application can count as watering in, although additional irrigation is still helpful. Do not apply more than the label recommends, and follow the instructions for each product.

Shipping & Support

Shipping

Shipping calculated at checkout

No P.O. Boxes

Not available in Oregon, California, Alaska or Hawaii

Delivery Time 4–7 business days
Returns All sales are final; no cancellations, returns, or exchanges.
Customer Support Contact Yard Mastery Support

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