10 Best Weed and Feed Fertilizer St Augustine Grass in 2026
- DUAL-ACTION FORMULA: Spectracide Weed & Feed 20-0-0 kills weeds while feeding your lawn.
- KILLS MAJOR BROADLEAF WEEDS: Kills dandelion, chickweed, knotweed, plantain, clover, mallow, purslane and many other broadleaf weeds.
- FEEDS LAWN: Formulated with 20% nitrogen to feed your lawn.
- COVERAGE: One 32-oz bottle treats up to 7,500 square feet.
- CONVENIENT THREE PACK: Three pack features one nozzle and three bottles of product.
- DUAL-ACTION FORMULA: Spectracide Weed & Feed 20-0-0 kills weeds while feeding your lawn.
- KILLS MAJOR BROADLEAF WEEDS: Kills dandelion, chickweed, knotweed, plantain, clover, mallow, purslane and many other broadleaf weeds.
- FEEDS LAWN: Formulated with 20% nitrogen to feed your lawn.
- COVERAGE: One 32-oz bottle treats up to 7,500 square feet.
- CONVENIENT THREE PACK: Three pack features one nozzle and three bottles of product.
- Contains Fairway Formula to nourish grass
- Weed & Feed formula for effective weed control
- Prevents crabgrass for a healthier lawn
- Covers an area of 10,000 square feet
- Available in a 36 lb. bag
- Ideal for spring lawn maintenance
- Contains Fairway Formula to nourish grass
- Weed & Feed formula for effective weed control
- Prevents crabgrass for a healthier lawn
- Covers an area of 10,000 square feet
- Available in a 36 lb. bag
- Ideal for spring lawn maintenance
- Professional-grade four-way herbicide for rapid and effective weed control
- Effective against over 250 types of weeds like dandelions and clover
- Maintains performance throughout the growing season, including cooler spring and fall applications
- Nutrient-rich formulation promotes thicker, greener lawns with immediate and extended feeding
- Smaller particles ensure enhanced coverage and efficacy
- Professional-grade four-way herbicide for rapid and effective weed control
- Effective against over 250 types of weeds like dandelions and clover
- Maintains performance throughout the growing season, including cooler spring and fall applications
- Nutrient-rich formulation promotes thicker, greener lawns with immediate and extended feeding
- Smaller particles ensure enhanced coverage and efficacy
- 3-in-1 treatment for preventing crabgrass, weed control, and lawn feeding
- Prevents crabgrass for up to 4 months
- Effective against over 200 weeds, including dandelions and clover
- Provides continuous feeding for lawns for 12 weeks
- Contains 65% slow-release nitrogen, phosphate-free
- Covers an area of 5,000 sq. ft.
- 3-in-1 treatment for preventing crabgrass, weed control, and lawn feeding
- Prevents crabgrass for up to 4 months
- Effective against over 200 weeds, including dandelions and clover
- Provides continuous feeding for lawns for 12 weeks
- Contains 65% slow-release nitrogen, phosphate-free
- Covers an area of 5,000 sq. ft.
- Broad-spectrum systemic fungicide for prevention and control of lawn diseases
- Controls 27 types of diseases, such as brown patch and powdery mildew
- Best applied before disease symptoms during favorable conditions
- Suitable for most grass types
- Covers up to 8,000 sq. ft. per 27.4 lbs. bag
- Broad-spectrum systemic fungicide for prevention and control of lawn diseases
- Controls 27 types of diseases, such as brown patch and powdery mildew
- Best applied before disease symptoms during favorable conditions
- Suitable for most grass types
- Covers up to 8,000 sq. ft. per 27.4 lbs. bag
- Thickens lawns and prevents weed growth with The Andersons Weed and Feed 24-0-16
- Effectively controls over 140 types of broadleaf weeds, including dandelions
- Combines quick- and slow-release nitrogen for immediate green-up and long-term nourishment
- Enriched with iron and sulfur to enhance grass greenness
- Compatible with various grass types, including bahia, bermuda, and zoysia; not suitable for dichondra or carpet grass
- Restricted sales in NY, FL, CA, and IN
- Thickens lawns and prevents weed growth with The Andersons Weed and Feed 24-0-16
- Effectively controls over 140 types of broadleaf weeds, including dandelions
- Combines quick- and slow-release nitrogen for immediate green-up and long-term nourishment
- Enriched with iron and sulfur to enhance grass greenness
- Compatible with various grass types, including bahia, bermuda, and zoysia; not suitable for dichondra or carpet grass
- Contains dithiopyr (0.125%) and various essential nutrients including total nitrogen (10%), soluble potash (14%), boron (0.02%), copper (0.05%), iron (0.10%), manganese (0.05%), and zinc (0.05%)
- Offers up to 4 months of effective crabgrass control while providing nutrients for healthy lawns
- Suitable for various southern lawn grasses such as Bahia, Bermuda, Buffalo, Carpet, Centipede, St. Augustine, and Zoysia
- Effectively controls or suppresses a range of annual grass and broadleaf weeds in established lawns.
- Contains dithiopyr (0.125%) and various essential nutrients including total nitrogen (10%), soluble potash (14%), boron (0.02%), copper (0.05%), iron (0.10%), manganese (0.05%), and zinc (0.05%)
- Offers up to 4 months of effective crabgrass control while providing nutrients for healthy lawns
- Suitable for various southern lawn grasses such as Bahia, Bermuda, Buffalo, Carpet, Centipede, St. Augustine, and Zoysia
- Effectively controls or suppresses a range of annual grass and broadleaf weeds in established lawns.
- 50-pound bag covering 13,000 square feet; 17-0-17 NPK ratio for St. Augustine grass
- Contains 30% poly-coated sulfur-coated urea, specifically formulated for St. Augustine grass
- Recommended application when turf is wet; allows to dry, with results visible in 2 weeks; safe for Floratam variety
- Slow release formula provides up to 8 weeks of continuous feeding
- 50-pound bag covering 13,000 square feet; 17-0-17 NPK ratio for St. Augustine grass
- Contains 30% poly-coated sulfur-coated urea, specifically formulated for St. Augustine grass
- Recommended application when turf is wet; allows to dry, with results visible in 2 weeks; safe for Floratam variety
- Slow release formula provides up to 8 weeks of continuous feeding
- 50-pound bag covering 13,000 square feet; 17-0-17 NPK ratio for St. Augustine grass
- Contains 30% poly-coated sulfur-coated urea, specifically formulated for St. Augustine grass
- Recommended application when turf is wet; allows to dry, with results visible in 2 weeks; safe for Floratam variety
- Slow release formula provides up to 8 weeks of continuous feeding
- 50-pound bag covering 13,000 square feet; 17-0-17 NPK ratio for St. Augustine grass
- Contains 30% poly-coated sulfur-coated urea, specifically formulated for St. Augustine grass
- Recommended application when turf is wet; allows to dry, with results visible in 2 weeks; safe for Floratam variety
- Slow release formula provides up to 8 weeks of continuous feeding
How We Estimate & Rank
We make shopping simple by hand-picking the top 10 Weed and Feed Fertilizer St Augustine Grass just for you. Our team focuses on what’s available right now, what’s popular with other shoppers, and, most importantly, what’s most relevant to your search. We cover leading brands such as Spectracide, Greenview, The Andersons, Scotts, VPG, and other trusted names in this category. By filtering out the noise, we ensure you only see high-quality options that actually meet your needs. It’s all the best finds, minus the endless scrolling!
Final Recommendations
We’ve selected three standout options to make your choice easier.
Our overall winner is Spectracide Weed & Feed 20-0-0 by Spectracide, earning top marks for its balanced combination of quality, performance, and price.
The best value for most shoppers is GreenView Fairway Formula Spring Fertilizer Weed & Feed and Crabgrass Preventer by Greenview, earning consistently positive feedback for its performance and accessible pricing.
The best deal available right now for Garden Fertilizers is GreenView Fairway Formula Spring Fertilizer Weed and Feed and Crabgrass Preventer by Greenview, now offered at 23% off.
