GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
GrowIQ 18-3-6 Liquid Fertilizer
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GrowIQ 18-3-6 Liquid Fertilizer

$36.00

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Not All Fertilizers Are The Same.

Cheap fertilizers make big promises and deliver weak results. Why? Because particle size matters. Oversized nutrient particles can't penetrate plant tissue efficiently, so most of what you apply ends up wasted. GrowIQ+ chelated micro-nutrients like Iron, Zinc, and Manganese, along with an ultra-fine particle size engineered for maximum absorption through both leaf tissue and root uptake. The result is a highly concentrated formula that covers more ground, feeds faster, and delivers real, visible results - not just a temporary green-up.

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       100% Made In the USA

  • 1 Quart Treats Up To 6,000 SQ FT 
  • 1 Gallon Treats 1/2 Acre
  • 18-3-6 NPK with chelated micronutrients
  • Dual-action nitrogen blend — quick release for fast green-up, slow release for lasting results
  • Chelated iron, manganese, zinc, and copper for deeper color and improved plant health
  • Micronized nutrients for maximum foliar and root absorption
  • Covers up to 2x more area than leading competitors
  • Easy to apply with any type of garden or agriculture sprayer
  • Fast color response — visible results within days of application
  • Safe for all grass types
  • Liquid precision - uniform coverage every time vs. uneven granular spreading
  • Chelated micronutrients deliver nutrients in their most plant-available form for maximum uptake efficiency

Professional-grade formula used by lawn care experts and landscapers nationwide.

GrowIQ+™ 18-3-6 - Liquid Fertilizer for Deeper Color, Faster Growth & a Thicker, Healthier Lawn

Powered by a dual-action nitrogen blend and chelated micronutrients, GrowIQ+ 18-3-6 is a professional-grade liquid fertilizer engineered to deliver fast, visible results. Quick-release nitrogen kicks in immediately for rapid green-up, while slow-release nitrogen keeps feeding your lawn for weeks - so you get the color response you want without the boom-and-bust cycle of standard fertilizers.

 

Dual-Action Nitrogen = Fast Results That Last 

Most liquid fertilizers hit hard and fade fast. GrowIQ+ 18-3-6 combines quick-release urea nitrogen for an immediate growth and color response with 9% slow-release methylene urea nitrogen that continues feeding your lawn long after application. One treatment delivers both the instant gratification and the lasting results your lawn needs to stay thick, green, and healthy.

 

Chelated Micronutrients Is The Secret to Deep Color 

GrowIQ+ 18-3-6 goes beyond basic N-P-K. Our chelated blend of iron, manganese, zinc, and copper delivers micronutrients in their most plant-available form — meaning your grass absorbs them immediately rather than waiting for soil chemistry to do the work. Chelated iron in particular drives the deep, dark green color that separates a great lawn from an average one. You'll see the difference within days.

 

Micronized Nutrients - Maximum Absorption 

GrowIQ+ uses micronized nutrient technology — ultra-fine particles engineered for rapid absorption through both leaf tissue and root uptake. Every drop goes to work immediately, delivering nutrients at the cellular level for faster response and better efficiency than standard liquid fertilizers.

 

More Coverage. Less Product. 

GrowIQ+ 18-3-6's highly concentrated formula covers up to 6,000 square feet per quart and a half acre per gallon - significantly more than competing products at the same size. Professional-grade concentration means you're getting more out of every application, not paying for a diluted formula that requires twice the product to move the needle.

 

Builds Thickness and Density Over Time 

Nitrogen drives vertical and lateral growth, filling in thin spots and building the dense turf that chokes out weeds naturally. Paired with phosphorus for root support and potassium for stress resistance, GrowIQ+ 18-3-6 doesn't just green up your lawn - it makes it stronger, thicker, and more resilient with every application.

 

Easy Application — No Mess, No Measuring 

Apply GrowIQ+ 18-3-6 with any sprayer. Hose-end, backpack, boom, or ATV sprayer. No heavy bags, no uneven spreading, and no waiting weeks to see results. Compatible with most pesticides and other liquid fertilizers for easy integration into any lawn care program.

 

Perfect For:

  • Lawns that need a fast green-up or color boost
  • Thin or patchy turf that needs a growth push
  • Cool and warm season grasses heading into peak growing season
  • Lawns recovering from heat stress, drought, or heavy traffic
  • Homeowners and landscapers who want professional-grade color and density

Smart Soil. Smarter Growth. GrowIQ+™ 18-3-6 delivers the professional-grade nutrition your lawn has been waiting for. Fast color, lasting results, and the chelated micronutrients your grass needs to reach its full potential - in one easy application.

GrowIQ+™ Application Instructions

 

Shake well before use. Apply to dry foliage. For best results, apply in the early morning or evening to avoid heat of day.

 

Backpack, Pump & Garden Sprayers

Mix 1.5 oz of GrowIQ+ per gallon of water. Apply evenly across your lawn or garden using a minimum of 2 gallons of mixed solution per 1,000 square feet. A 1-gallon sprayer treats approximately 500 square feet, a 2-gallon sprayer covers around 1,000 square feet, and a 4-gallon backpack sprayer covers up to 2,000 square feet per tank. Spray until foliage is thoroughly wet. Avoid runoff.

 

Hose-End Sprayers

Fill reservoir with GrowIQ+ concentrate and set dial to 2-3 oz per gallon. Spray evenly across lawn using a slow, sweeping motion for uniform coverage. A 1-quart reservoir treats up to 6,000 square feet. A full gallon covers up to ½ acre.

 

Application Schedule

For best results, apply every 2-4 weeks during active growing season. For maintenance on an established lawn, one application per month is sufficient. For new lawns and establishment, apply every 2-4 weeks until desired density is achieved. For nutrient deficient or stressed turf, apply every 14 days until recovery is visible.

 

Tips for Best Results

Apply in the early morning or evening when temperatures are cooler. Avoid application during drought conditions or on dormant grass. Water lawn lightly within 24 hours of application if no rain is expected. GrowIQ+ is compatible with most pesticides and other liquid fertilizers and is safe for all grass types including Bermuda, Fescue, Kentucky Bluegrass, Zoysia, St. Augustine, and Ryegrass.

 

If you have any questions on the application process, please do not hesitate to reach out, you can contact us at support@getearthiq.com