GrassGrower 10-2-4 Fertilizer

Healthier soil. Stronger grass. Proudly Made in Florida.

Stop guessing with products not built for Florida soil and finally get results that match our climate.

Warm-season turf fertilizer + color feed

Deep color. Steady feeding. Built for warm-season turf.

FloridaGreen® GrassGrower 10-2-4 is a turf fertilizer and color feed designed for St. Augustine, Bermuda, Zoysia, Centipede, and Bahia grasses. Every pound of nitrogen is slow-release, combining organic nitrogen from biosolids with polymer-coated urea for steady feeding over time.

GrassGrower also provides 2.50% iron, 0.50% water-soluble manganese, 2.10% magnesium, and 5.70% sulfur for color and turf performance, while humic acid, fulvic acid, and organic carbon help support the soil below.

100% slow-release nitrogen 2.50% iron for deep color Built for warm-season grasses
FloridaGreen GrassGrower 10-2-4 Fertilizer
10-2-4 Guaranteed N-P-K analysis for warm-season turf.
100% Every pound of nitrogen is supplied by slow-release sources.
2.50% Fe Iron supports deeper turf color without relying on a surge of top growth.
10,000 ft² Approximate coverage from one 40 lb bag at the standard rate.

More than a turf fertilizer

Color now. Steady nutrition over time.

GrassGrower is designed to feed warm-season turf without pushing excessive top growth, while also supplying color-supporting micronutrients and soil-amending ingredients.

Deep color without surge growth

2.50% iron and 0.50% water-soluble manganese help green the stand through the leaf without creating a flush of top growth to mow off.

100% slow-release nitrogen

GrassGrower combines 3.46% water-insoluble nitrogen from biosolids with 6.54% slow-release nitrogen from polymer-coated urea.

Controlled release over time

Polymer-coated urea meters nitrogen out over about 30 days, while the organic nitrogen fraction releases more gradually over roughly 10 to 45 days.

Humic + fulvic acids

7.25% humic acid and 1.20% fulvic acid are included alongside 10% organic carbon to support the soil and help chelate micronutrients.

Magnesium + sulfur

2.10% magnesium and 5.70% sulfur provide additional nutrition that supports turf color and performance through warm conditions.

Made for warm-season turf

Designed for St. Augustine, Bermuda, Zoysia, Centipede, and Bahia across residential lawns, commercial turf, golf, sports turf, and sod production.

Made in Spring Hill, Florida

Built for the grasses that grow here.

Warm-season turf has different needs than cool-season grass. GrassGrower is formulated for the turf types common across Florida and the Southeast, combining slow-release nitrogen with iron, manganese, magnesium, sulfur, humic substances, and organic carbon.

That makes it a fit for everything from residential and commercial lawns to sod production, golf courses, and sports turf where steady feeding and reliable color matter.

  • Proudly made in Spring Hill, Florida
  • For St. Augustine, Bermuda, Zoysia, Centipede, and Bahia
  • Intended for sod, golf, sports turf, residential, and commercial lawns
  • 100% slow-release nitrogen for steady feeding
Warm-season turf treated with FloridaGreen fertilizer

Product details

What’s inside FloridaGreen® GrassGrower 10-2-4

The 10-2-4 analysis provides nitrogen for growth, phosphate for plant development, and potash for overall turf performance. GrassGrower also supplies magnesium, sulfur, iron, manganese, and zinc.

Every pound of nitrogen is slow-release. The blend combines 3.46% water-insoluble nitrogen from biosolids with 6.54% slow-release nitrogen from 30-day polymer-coated urea.

Guaranteed analysis FloridaGreen® GrassGrower 10-2-4
  • Total Nitrogen (N)10.00%
  • Water-insoluble Nitrogen (biosolids)3.46%
  • Slow-release Nitrogen (30-day PCU)6.54%
  • Available Phosphate (P₂O₅)2.00%
  • Soluble Potash (K₂O)4.00%
  • Magnesium (Mg)2.10%
  • Sulfur (S)5.70%
  • Iron (Fe)2.50%
  • Manganese (Mn), water-soluble0.50%
  • Zinc (Zn)0.05%
Also contains non-plant food ingredients 1.40% Ca · 7.25% Humic · 1.20% Fulvic · 10% Organic Carbon
STANDARD RATE 4.0 lb / 1,000 ft² Provides 0.4 lb N per 1,000 ft², equal to approximately 174 lb N per acre.
COVERAGE 10,000 ft² Approximate coverage from one 40 lb bag at the standard rate.
TIMING 10-12 wk Recommended application interval from spring green-up through early fall.
MAXIMUM 1.0 lb N / 1,000 ft² Never exceed this nitrogen rate per application.

A turf program built to do more

Feed the turf. Build color. Support the soil.

GrassGrower combines controlled-release fertility, color-supporting micronutrients, and soil-amending ingredients in one warm-season turf fertilizer.

Release nitrogen gradually

Organic nitrogen and 30-day polymer-coated urea provide two slow-release nitrogen sources instead of a quick flush of feeding.

Build deeper color

Iron and water-soluble manganese help green the turf without depending on excessive top growth.

Support what is below

Humic acid, fulvic acid, and organic carbon add soil-amending ingredients alongside the fertilizer program.

Clean + compliant

Made for professional and residential turf programs.

GrassGrower is derived from biosolids, polymer-coated urea, sulfate of potash-magnesia, iron sulfate, and manganese sulfate. The product sheet lists it under FDACS License #F002300 and states that applicable EPA, FDEP, USDA, FFAA, and TERD requirements are met and passed.

Iron may stain concrete and pavers, so sweep stray granules back onto the lawn. Do not apply near water, storm drains, or ditches, or when heavy rain is forecast. Observe local fertilizer ordinances and blackout periods.

  • FDACS License #F002300
  • 100% slow-release nitrogen
  • 7.25% humic acid, 1.20% fulvic acid, and 10% organic carbon
  • Available in 25 lb bags, 40 lb bags, super sacks, and bulk quantities
FloridaGreen GrassGrower 10-2-4 warm-season turf fertilizer

Product resources

Labels and product information.

Open each document in a new tab to review it online or download a copy for your records.

Frequently asked questions

Know what you are putting on your turf.

FloridaGreen® GrassGrower 10-2-4 is a warm-season turf fertilizer and color feed. It combines 100% slow-release nitrogen with iron, manganese, magnesium, sulfur, humic acid, fulvic acid, and organic carbon.

GrassGrower is intended for warm-season turf grasses including St. Augustine, Bermuda, Zoysia, Centipede, and Bahia. The product sheet lists uses including sod production, golf and sports turf maintenance, and residential and commercial lawns.

GrassGrower uses two slow-release nitrogen sources: 3.46% water-insoluble nitrogen from biosolids and 6.54% nitrogen from 30-day polymer-coated urea. The polymer-coated portion meters nitrogen over about one month, while the organic nitrogen releases more gradually.

The standard rate is 4.0 pounds per 1,000 square feet, which provides 0.4 pound of nitrogen per 1,000 square feet. A 40 pound bag covers approximately 10,000 square feet at that rate. Always follow the current product label and local fertilizer requirements.

The product sheet recommends a 10 to 12 week application interval from spring green-up through early fall. Do not exceed 1.0 pound of nitrogen per 1,000 square feet in a single application.

GrassGrower combines slow-release fertility with color-supporting micronutrients and soil-amending ingredients. In addition to its 10-2-4 analysis, it contains 2.50% iron, 0.50% water-soluble manganese, 7.25% humic acid, 1.20% fulvic acid, and 10% organic carbon.

Bring GrassGrower to your lawn, business, or customers

Choose the right way to get started.

Whether you are caring for your own lawn, stocking your store, or managing turf professionally, we will point you in the right direction.

Use only as directed. Iron may stain concrete and pavers, so sweep stray granules back onto the lawn. Do not apply near water, storm drains, or ditches, or when heavy rain is forecast. Observe local fertilizer ordinances and blackout periods. Refer to the current product label for complete directions and requirements.