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20 Best Fertilizer For St Augustine Grass In Florida (2022 Updated)

Fertilizer for St. Augustine grass in Florida is typically a 3-1-2 or 4-1-2 ratio of nitrogen, phosphorus, and potassium.

20 Best Fertilizer For St Augustine Grass In Florida

Product Image Product Name Features Price

FoxFarm Grow Big Liquid Concentrate Fertilizer – 16 fl oz bottle

  • Organic-based concentrate made up of a comprehensive blend of major; minor; and micro nutrients
  • Grow Big was designed to promote spectacular growth

The Andersons PGF Complete 16-4-8 Fertilizer with Humic DG 5000 sq.ft.

  • Improve your soil health, lawn health, plant health, and reduce the use of fertilizers
  • Environmentally friendly, OMRI listed. User friendly; can be blended with fertilizers or used alone

Espoma Organic Bio-Tone Starter Plus Plant Food 25 Pound

  • ALL-PURPOSE SEED STARTER: All-purpose seed starter and natural plant food for all your gardening and planting needs
  • OBTAIN MAXIMUM NUTRIENTS: Use at the time of planting to help produce root systems quickly and ensure plantings obtain maximum nutrients

Osmocote Plus Outdoor & Indoor Plant Food 1 lb

  • Osmocote’s best formula (11 nutrients)
  • Works with virtually all plant varieties and in all growing conditions
  • Feeds up to 6 full months

Neptune's Harvest Fish Fertilizer 2-4-1 36 oz

  • Organic, highly nutritional protein fertilizer made with naturally occurring enzymes present in fresh north atlantic fish

FoxFarm Cha Ching Soluble Fertilizer 1 lbs.

  • Cha Ching is a high-phosphorus fertilizer that won’t leave a salty residue.
  • All the essential elements you need to support juicy fruit on compact, stocky plants.

Milorganite 32 lb. Slow-Release Nitrogen Fertilizer

  • Eco-friendly
  • Slow Release, feeds up to 3 months
  • Aids in root development

Milorganite Slow-Release Nitrogen Lawn Fertilizer, 32 Lb

  • Organic composition
  • Reduces the need for watering
  • Cuts down mowing time

Miracle-Gro 4.5 lb Shake 'N Feed Rose & Bloom Plant Food

  • Contains natural ingredients to feed microbes in the soil.
  • Promotes more blooms and spectacular color in flowering plants and roses versus unfed plants.

Miracle-Gro Quick Start – 48 oz.

  • To be used when planting and transplanting a plant in the garden or yard.
  • It gets the plant off to a great start.
  • Can be used on flowers trees and shrubs.

Sunday Fall Fortify Lawn Fertilizer, 42 oz

  • “Easy: all you need is a hose”
  • “Apply entire pouch In 10-15 minutes”
  • “Powered by ingredients like nitrogen

Advanced Nutrients – Rhino Skin 1 L

  • Increases heat, diseases, and stress resistance.
  • Increases trichome structures and potency.
  • Strengthens plants allowing them to produce and support larger flowers.

Miracle Gro 4.5 lbs. Shake N Feed All Purpose Plant Food

  • Formulated with micro nutrients to help plants grow stronger and be more productive
  • Contains kelp, earthworm castings, feather meal, and bone meal

Alpha Chemicals Ferrous Sulfate Heptahydrate – Feso4*7h2o – 20% Iron – Very …

  • Animal Feed Grade.
  • Very Soluble Hepahydrate form.
  • Ferrous sulfate heptahydrate is used in water treatment, most control, animal feed supplements, along with a wide range of other uses.

Miracle-Gro Shake 'N Feed All Purpose Plant Food Plus Weed Preventer, 4.5 lbs

  • One application feeds plants and prevents weeds for up to three months.
  • Easy use applicator.
  • Treats a minimum of 135 square feet.
FoxFarm Grow Big Liquid Concentrate Fertilizer – 16 fl oz bottle
  • Organic-based concentrate made up of a comprehensive blend of major; minor; and micro nutrients
  • Grow Big was designed to promote spectacular growth
The Andersons PGF Complete 16-4-8 Fertilizer with Humic DG 5000 sq.ft.
  • Improve your soil health, lawn health, plant health, and reduce the use of fertilizers
  • Environmentally friendly, OMRI listed. User friendly; can be blended with fertilizers or used alone
Espoma Organic Bio-Tone Starter Plus Plant Food 25 Pound
  • ALL-PURPOSE SEED STARTER: All-purpose seed starter and natural plant food for all your gardening and planting needs
  • OBTAIN MAXIMUM NUTRIENTS: Use at the time of planting to help produce root systems quickly and ensure plantings obtain maximum nutrients
Osmocote Plus Outdoor & Indoor Plant Food 1 lb
  • Osmocote’s best formula (11 nutrients)
  • Works with virtually all plant varieties and in all growing conditions
  • Feeds up to 6 full months
Neptune's Harvest Fish Fertilizer 2-4-1 36 oz
  • Organic, highly nutritional protein fertilizer made with naturally occurring enzymes present in fresh north atlantic fish
FoxFarm Cha Ching Soluble Fertilizer 1 lbs.
  • Cha Ching is a high-phosphorus fertilizer that won’t leave a salty residue.
  • All the essential elements you need to support juicy fruit on compact, stocky plants.
Milorganite 32 lb. Slow-Release Nitrogen Fertilizer
  • Eco-friendly
  • Slow Release, feeds up to 3 months
  • Aids in root development
Milorganite Slow-Release Nitrogen Lawn Fertilizer, 32 Lb
  • Organic composition
  • Reduces the need for watering
  • Cuts down mowing time
Miracle-Gro 4.5 lb Shake 'N Feed Rose & Bloom Plant Food
  • Contains natural ingredients to feed microbes in the soil.
  • Promotes more blooms and spectacular color in flowering plants and roses versus unfed plants.
Miracle-Gro Quick Start – 48 oz.
  • To be used when planting and transplanting a plant in the garden or yard.
  • It gets the plant off to a great start.
  • Can be used on flowers trees and shrubs.
Sunday Fall Fortify Lawn Fertilizer, 42 oz
  • “Easy: all you need is a hose”
  • “Apply entire pouch In 10-15 minutes”
  • “Powered by ingredients like nitrogen
Advanced Nutrients – Rhino Skin 1 L
  • Increases heat, diseases, and stress resistance.
  • Increases trichome structures and potency.
  • Strengthens plants allowing them to produce and support larger flowers.
Miracle Gro 4.5 lbs. Shake N Feed All Purpose Plant Food
  • Formulated with micro nutrients to help plants grow stronger and be more productive
  • Contains kelp, earthworm castings, feather meal, and bone meal
Alpha Chemicals Ferrous Sulfate Heptahydrate – Feso4*7h2o – 20% Iron – Very …
  • Animal Feed Grade.
  • Very Soluble Hepahydrate form.
  • Ferrous sulfate heptahydrate is used in water treatment, most control, animal feed supplements, along with a wide range of other uses.
Miracle-Gro Shake 'N Feed All Purpose Plant Food Plus Weed Preventer, 4.5 lbs
  • One application feeds plants and prevents weeds for up to three months.
  • Easy use applicator.
  • Treats a minimum of 135 square feet.

1. FoxFarm Grow Big Liquid Concentrate Fertilizer – 16 fl oz bottle

FoxFarm Grow Big Liquid Concentrate Fertilizer - 16 fl oz bottle

  • Organic-based concentrate made up of a comprehensive blend of major; minor; and micro nutrients
  • Grow Big was designed to promote spectacular growth
  • Growers find it optimal for roses; tomatoes; veggies; flowers; fruits; herbs; and lawns

Check Latest Price

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Amazon.com
eBay
Walmart
Blain’s Farm & Fleet

Product Details

Specifications

Details
Organic Yes
Product Type Liquid Plant Food Concentrate
For Supplemental Foliar 1/2 tsp/gal
For General Feeding 2-3 tsp/gal
Container Size 1 pt.
Brand Name FoxFarm

Reviews From Real Customers

CoinCapo
kentrou-44

2. The Andersons PGF Complete 16-4-8 Fertilizer with Humic DG 5000 sq.ft.

The Andersons PGF Complete 16-4-8 Fertilizer with Humic DG 5000 sq.ft.

  • Improve your soil health, lawn health, plant health, and reduce the use of fertilizers
  • Environmentally friendly, OMRI listed. User friendly; can be blended with fertilizers or used alone

Check Latest Price

Sold By Price
Amazon.com – Seller
eBay
The Andersons
Exit 15 Corporation

Product Details

Specifications

Details
Product Dimensions 15 x 14 x 4 inches
Country of Origin USA

Reviews From Real Customers

Donald B.
Brian S.

3. Espoma Organic Bio-Tone Starter Plus Plant Food 25 Pound

Espoma Organic Bio-Tone Starter Plus Plant Food 25 Pound

  • ALL-PURPOSE SEED STARTER: All-purpose seed starter and natural plant food for all your gardening and planting needs
  • OBTAIN MAXIMUM NUTRIENTS: Use at the time of planting to help produce root systems quickly and ensure plantings obtain maximum nutrients
  • NECESSARY NUTRIENTS: Derived from feather meal, poultry manure, bone meal, alfalfa meal, greensand, and more necessary nutrients

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Amazon.com – Seller
eBay
Walmart
Esbenshade’s Garden Center

Product Details

Specifications

Details
Product Form Granules
Brand Name Espoma
Product Type Plant Food
Container Size 25 lb
Fertilizer Analysis (N-P-K) 4-3-3
Active Ingredient Endo & Ecto Mycorrhizae
Plant Type Multi-Purpose
Concentrated No
Coverage Area 100 sq ft
Time Release Slow-Release
Season Use Multi-Season
Organic Yes

Reviews From Real Customers

meridame
cabatl68
Wil

4. Osmocote Plus Outdoor & Indoor Plant Food 1 lb

Osmocote Plus Outdoor & Indoor Plant Food 1 lb

  • Osmocote’s best formula (11 nutrients)
  • Works with virtually all plant varieties and in all growing conditions
  • Feeds up to 6 full months
  • NPK Analysis: 15-9-12
  • Apply with confidence to potted plants, indoors or outdoors

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Sold By Price
Amazon.com
Walmart
Ace Hardware
McGuckin Hardware

Product Details

Specifications

Details
Product Type Plant Food
Product Form Granules
Concentrated No
Fertilizer Analysis (N-P-K) 15-9-12
Organic No
Container Size 1 lb
Coverage Area 37 sq ft
Time Release Continuous-Release
Season Use Multi-Season
Brand Name Osmocote

Reviews From Real Customers

AmyAnn
AYEIKA

5. Jobes Granular Fruit and Citrus Fertilizer Spikes – 15 pack

Jobes Granular Fruit and Citrus Fertilizer Spikes - 15 pack

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Amazon.com – Seller
eBay
Walmart
Home Depot

Product Details

Specifications

Details
Weight 5.25 oz

Reviews From Real Customers

DanaB
Bob the gardener
wilberr_75

6. Neptune’s Harvest Fish Fertilizer 2-4-1 36 oz

Neptune's Harvest Fish Fertilizer 2-4-1 36 oz

  • Organic, highly nutritional protein fertilizer made with naturally occurring enzymes present in fresh north atlantic fish
  • Nitrogen, derived from fish protein in the form of amino acids, slowly breaks down into basic compounds when added to soil
  • Does no biological damage to the soil and will promote the growth of beneficial bacteria
  • Because no oils or proteins are removed, the nutrients remain in the soil longer

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Amazon.com
eBay
Walmart
Arbico Organics

Product Details

Specifications

Details
Weight 2.46 oz

Reviews From Real Customers

Shahab
vjcats

7. FoxFarm Cha Ching Soluble Fertilizer 1 lbs.

FoxFarm Cha Ching Soluble Fertilizer 1 lbs.

  • Cha Ching is a high-phosphorus fertilizer that won’t leave a salty residue.
  • All the essential elements you need to support juicy fruit on compact, stocky plants.
  • Cha Ching creates juicy, robust fruit with essential oils.
  • Use to maximize a plant’s production.
  • Feed with every other watering.

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Amazon.com – Seller
eBay
Walmart
Grow Green MI

Product Details

Specifications

Details
Container Size 1 lb.
Product Type Soluble Fertilizer
Fertilizer Analysis 9-50-10
Brand Name FoxFarm

Reviews From Real Customers

123troyce
david_777_222

8. Milorganite 32 lb. Slow-Release Nitrogen Fertilizer

Milorganite 32 lb. Slow-Release Nitrogen Fertilizer

  • Eco-friendly
  • Slow Release, feeds up to 3 months
  • Aids in root development
  • Contains non-staining iron
  • Fertilizer Analysis is 6-4-0

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Amazon.com – Seller
eBay – lironshin

Product Details

Specifications

Details
Assembled Product Weight 33.000 oz
Assembled Product Dimensions (L x W x H) 14.00 x 8.00 x 18.00 Inches

9. Milorganite Slow-Release Nitrogen Lawn Fertilizer, 32 Lb

Milorganite Slow-Release Nitrogen Lawn Fertilizer, 32 Lb

  • Organic composition
  • Reduces the need for watering
  • Cuts down mowing time
  • Used on golf courses for decades

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Amazon.com – Seller
eBay
Walmart
Lowe’s

Product Details

Specifications

Details
Product Type Lawn Fertilizer
Organic Yes
Grass Type All Grasses
Fertilizer Analysis (N-P-K) 06-04-00
Application Conditions Dry
Product Type Slow-Release Nitrogen Fertilizer
Coverage Area 2500 sq. ft.
Container Size 32 lb.
Grass Type All Grass Types
Water Soluble No
Product Form Granules
Suitable for Vegetables Yes
Application Season All Seasons
Primary Usage Slow Release Nitrogen
Brand Name Milorganite

10. Miracle-Gro 4.5 lb Shake ‘N Feed Rose & Bloom Plant Food

Miracle-Gro 4.5 lb Shake 'N Feed Rose & Bloom Plant Food

  • Contains natural ingredients to feed microbes in the soil.
  • Promotes more blooms and spectacular color in flowering plants and roses versus unfed plants.
  • For new and existing roses and flowering plants.
  • Feeds up to 3 months; Takes the Guesswork Out of Feeding!
  • Can be conveniently used on all flowering plants, both in ground and in containers.

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Amazon.com
eBay
Home Depot
Tractor Supply Company

Product Details

Specifications

Details
Application Frequency 3 Months
Brand Name Miracle-Gro
Product Type Plant Food
Time Release Continuous Release
Fertilizer Analysis (N-P-K) 10-18-9
Concentrated No
Organic No
Container Size 4.5 lb
Coverage Area 135 sq ft
Active Ingredient Ammoniacal Nitrogen
Plant Type Rose & Bloom
Product Form Granules

Reviews From Real Customers

Big OA
robastro54

11. Miracle-Gro Liquafeed All Purpose Plant Food – 4 pack, 16 oz bottles

Miracle-Gro Liquafeed All Purpose Plant Food - 4 pack, 16 oz bottles

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Amazon.com
Walmart
Lowe’s
Miracle-Gro

Product Details

Specifications

Details
Product Form Liquid
Concentrated Yes
Fertilizer Analysis (N-P-K) 12-4-8
Plant Type Flowers
Product Type All Purpose Plant Food
Number in Package 4 pk
Container Size 16 oz
Application Frequency 2 Weeks
Brand Name Miracle-Gro

Reviews From Real Customers

Smokey

12. Miracle-Gro Quick Start – 48 oz.

Miracle-Gro Quick Start - 48 oz.

  • To be used when planting and transplanting a plant in the garden or yard.
  • It gets the plant off to a great start.
  • Can be used on flowers trees and shrubs.
  • Apply one per gallon of water into watering can.
  • Use in the hole and on the root system of the plant.

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Amazon.com
eBay
Home Depot
Tractor Supply Company

Product Details

Specifications

Details
Product Form Liquid
Fertilizer Analysis (N-P-K) 4-12-4
Concentrated Yes
Plant Type Flower and Vegetable Transplants
Container Size 48 oz
Coverage Area 150 sq ft
Organic No
Product Type Root Feeder
Season Use Multi-Season
Brand Name Miracle-Gro

Reviews From Real Customers

Fredys lawn care
Mark to Old Gardener!

13. Sunday Fall Fortify Lawn Fertilizer, 42 oz

Sunday Fall Fortify Lawn Fertilizer, 42 oz

  • “Easy: all you need is a hose”
  • “Apply entire pouch In 10-15 minutes”
  • “Powered by ingredients like nitrogen
  • and calcium”
  • “No toxic pesticides.”

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Walmart

Product Details

Specifications

Details
For Use In All Seasons No
Weed Control No
Can Be Used on Bluegrass Yes
Can Be Used on St. Augustine Yes
Can Be Used When Seeding Yes
Nitrogen (N) Content (Percentage) 22
Insect Control No
Waiting Period To Water 24 hours
Safer For Pets Yes
For Use in Summer No
Primary Usage All-purpose lawn fertilizer
All-Purpose Yes
Bag Capacity Unit of Measure Fluid ounce(s)
Can Be Used on Bermuda Yes
Can Be Used on Ryegrass Yes
Bag Capacity Quantity by Dry Volume 42.3
For Use in Fall Yes
Crabgrass Preventer No
OMRI Listed No
Can Be Used on All Grass Types Yes
Can Be Used on Fescue Yes
Can Be Used on Bahia Yes
Potassium (K) Content (Percentage) 0
Time Release Fast release
For Use in Winter Yes
Moss Control No
Lawn Starter No
Mineral Supplement No
Feed Duration Up to 28 days
Organic No
Natural Yes
Waiting Period to Seed No waiting period
Can Be Used on Zoysia Yes
Can Be Used on Centipede No
Phosphorus Content (Percentage) 0
Maximum Coverage Area (Sq. Feet) 5000
Lowe’s Exclusive No
Package Quantity 1
Application Temperature Range 60-80 degrees
Can Be Used On Edibles No
For Use in Spring No
Safer For Kids Yes
Annual Program No
Winterizer Yes
Iron Included Yes

Reviews From Real Customers

DanO

14. Advanced Nutrients – Rhino Skin 1 L

Advanced Nutrients - Rhino Skin 1 L

  • Increases heat, diseases, and stress resistance.
  • Increases trichome structures and potency.
  • Strengthens plants allowing them to produce and support larger flowers.
  • Does not affect the pH level.

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Amazon
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New England Hydroponics
Edenz Hydro and Gardening Superstore

Product Details

Specifications

Details
Length (in.) 4.5
Lead Time This product ships in 1-2 Business Days
N-P-K 0-0-0.4
Nutrient Application Hydroponic and Soil Nutrient
Nutrient Type Synthetic Based
OMRI Certified No
Nutrient Material Type Liquid

Reviews From Real Customers

ldrancer
eikdupre_0

15. Ammonium Sulfate – NH42SO4 – 1 Pound 1NH4SO4

Ammonium Sulfate - NH42SO4 - 1 Pound 1NH4SO4

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Amazon
eBay – alphachem08
Walmart – Alpha Chemicals
Exit 15 Corporation

Product Details

Reviews From Real Customers

13nhb
sadi_870
rosemariedreams

16. Miracle Gro 4.5 lbs. Shake N Feed All Purpose Plant Food

Miracle Gro 4.5 lbs. Shake N Feed All Purpose Plant Food

  • Formulated with micro nutrients to help plants grow stronger and be more productive
  • Contains kelp, earthworm castings, feather meal, and bone meal
  • Can be used on indoor and outdoor plants
  • Ideal for all flowers, vegetables, trees, shrubs, and houseplants
  • Nourishes above and below the soil

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Home Depot
Miracle-Gro

Product Details

17. Alpha Chemicals Ferrous Sulfate Heptahydrate – Feso4*7h2o – 20% Iron – Very …

Alpha Chemicals Ferrous Sulfate Heptahydrate - Feso4*7h2o - 20% Iron - Very ...

  • Animal Feed Grade.
  • Very Soluble Hepahydrate form.
  • Ferrous sulfate heptahydrate is used in water treatment, most control, animal feed supplements, along with a wide range of other uses.

Check Latest Price

Sold By Price
Amazon
eBay
Exit 15 Corporation

Product Details

18. Miracle-Gro Shake ‘N Feed All Purpose Plant Food Plus Weed Preventer, 4.5 lbs

Miracle-Gro Shake 'N Feed All Purpose Plant Food Plus Weed Preventer, 4.5 lbs

  • One application feeds plants and prevents weeds for up to three months.
  • Easy use applicator.
  • Treats a minimum of 135 square feet.

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Sold By Price
Amazon
Home Depot
Lowe’s
Miracle-Gro

Product Details

Specifications

Details
Brand Name Miracle-Gro
Fertilizer Analysis (N-P-K) 10-10-10
Concentrated No
Container Size 4.5 lb
Coverage Area 135 sq ft
Organic No
Product Type Weed Preventer plus Plant Food
Application Frequency 3 Months
Product Form Granules

19. Milorganite Nitrogen Fertilizer

Milorganite Nitrogen Fertilizer

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Solutions Pest & Lawn
Alsip Home & Nursery

Product Details

Specifications

Details
Weight 37 lb

20. Sunday Lawn Kickstart Fertilizer for Lawn Improvement (22-0-2)

Sunday Lawn Kickstart Fertilizer for Lawn Improvement (22-0-2)

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Lowe’s
Instacart

Product Details

Specifications

Details
For Use in Spring Yes
Safer For Kids Yes
Can Be Used On Edibles No
Maximum Coverage Area (Sq. Feet) 5000
Feed Duration Up to 8 weeks
Organic No
OMRI Listed No
Can Be Used on Bluegrass Yes
Winterizer No
Annual Program No
Mineral Supplement Yes
Phosphorus Content (Percentage) 0
Bag Capacity Quantity by Dry Volume 42.3
Can Be Used on Centipede Yes
Lowe’s Exclusive No
Natural Yes
Lawn Starter Yes
For Use In All Seasons No
Can Be Used on Zoysia Yes
Can Be Used on Bermuda Yes
Can Be Used on Ryegrass Yes
Waiting Period to Seed No waiting period
Bag Capacity Unit of Measure Fluid ounce(s)
Nitrogen (N) Content (Percentage) 22
For Use in Summer Yes
Moss Control No
For Use in Fall No
Crabgrass Preventer No
Can Be Used When Seeding Yes
Potassium (K) Content (Percentage) 2
Can Be Used on St. Augustine Yes
Time Release Fast release
All-Purpose No
For Use in Winter No
Safer For Pets Yes
Can Be Used on All Grass Types Yes
Can Be Used on Fescue Yes
Can Be Used on Bahia Yes

Conclusion

The best fertilizer for St. Augustine grass in Florida is a slow-release nitrogen fertilizer.

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