Best Weed Killer For St Augustine Lawns in 2025
Updated on April 2025
#1
Recommended
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- Does not harm lawns when applied correctly, effectively controlling both existing and seed-emerging weeds.
- Contains Atrazine for effective lawn weed control in St. Augustinegrass and centipedegrass.
- Effectively targets tough weeds, including dollarweed, sandspur, and Florida betony.
- Equipped with a QuickFlip hose-end sprayer for easy activation and application.
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- Does not harm lawns when applied correctly, effectively controlling both existing and seed-emerging weeds.
- Contains Atrazine for effective lawn weed control in St. Augustinegrass and centipedegrass.
- Effectively targets tough weeds, including dollarweed, sandspur, and Florida betony.
- Equipped with a QuickFlip hose-end sprayer for easy activation and application.
#2
Value for Money
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- 3-in-1 formula designed for Southern grass varieties, addressing weeds, fire ants, and lawn health
- Effectively targets common weeds including dollarweed, dandelion, and clover
- Provides up to 6 months of fire ant control, along with protection against additional pests like fleas and ticks
- Compatible with St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass
- Covers an area of 8,000 square feet per 26.64 lb. bag
- Available for use in various Southern states including TX, FL, and GA
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- 3-in-1 formula designed for Southern grass varieties, addressing weeds, fire ants, and lawn health
- Effectively targets common weeds including dollarweed, dandelion, and clover
- Provides up to 6 months of fire ant control, along with protection against additional pests like fleas and ticks
- Compatible with St. Augustinegrass, Centipedegrass, Zoysiagrass, and Carpetgrass
- Covers an area of 8,000 square feet per 26.64 lb. bag
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#3
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- Specially designed for Southern lawns, effective on Bermudagrass, St. Augustinegrass (including Floratam), Zoysia, and Centipedegrass
- Provides up to 6 months of protection against broadleaf weeds, grassy weeds, and crabgrass
- Effectively eliminates common weeds such as Dandelion, Dollarweed, and Clover
- Nourishes your lawn, promoting growth and enhancing color
- Not available for purchase in certain states including AK, CA, CO, and others
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- Specially designed for Southern lawns, effective on Bermudagrass, St. Augustinegrass (including Floratam), Zoysia, and Centipedegrass
- Provides up to 6 months of protection against broadleaf weeds, grassy weeds, and crabgrass
- Effectively eliminates common weeds such as Dandelion, Dollarweed, and Clover
- Nourishes your lawn, promoting growth and enhancing color
- Not available for purchase in certain states including AK, CA, CO, and others
#4
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- Covers an area of 3,720 square feet with one quart
- Effective against weeds in St. Augustine and Centipede grasses
- Weight of the product is 1.021 kilograms
- Dimensions: 5.842 cm (L) x 19.177 cm (H) x 12.954 cm (W)
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- Covers an area of 3,720 square feet with one quart
- Effective against weeds in St. Augustine and Centipede grasses
- Weight of the product is 1.021 kilograms
- Dimensions: 5.842 cm (L) x 19.177 cm (H) x 12.954 cm (W)
#5
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- Effectively eliminates weeds down to the root without damaging the lawn when applied correctly.
- Targets over 250 types of weeds such as dandelions, clover, and poison ivy; refer to the product label for a comprehensive list.
- Formulated with three active ingredients specifically designed to kill common lawn weeds while preserving grass health when used as directed.
- Visible weed elimination within hours; rain-resistant after one hour of drying; safe for people and pets after drying.
- User-friendly application by connecting to a garden hose and adjusting the nozzle as needed.
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- Effectively eliminates weeds down to the root without damaging the lawn when applied correctly.
- Targets over 250 types of weeds such as dandelions, clover, and poison ivy; refer to the product label for a comprehensive list.
- Formulated with three active ingredients specifically designed to kill common lawn weeds while preserving grass health when used as directed.
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#6
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- Effectively eliminates broadleaf weeds including Dollarweed, Dandelion, and Clover for up to 6 months.
- Prevents growth of both grassy and broadleaf weeds, including Crabgrass and Annual Bluegrass, for a duration of 6 months.
- Suitable for southern lawns, covering an area of 4,000 square feet and compatible with St. Augustinegrass and Floratam.
- Single application offers long-lasting control of over 50 identified lawn weeds throughout the season.
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- Effectively eliminates broadleaf weeds including Dollarweed, Dandelion, and Clover for up to 6 months.
- Prevents growth of both grassy and broadleaf weeds, including Crabgrass and Annual Bluegrass, for a duration of 6 months.
- Suitable for southern lawns, covering an area of 4,000 square feet and compatible with St. Augustinegrass and Floratam.
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#7
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- Effectively eliminates various broadleaf weeds
- Suitable for use in centipede grass
- Offers crabgrass suppression
- Controls existing weeds as well as those germinating from seeds
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- Effectively eliminates various broadleaf weeds
- Suitable for use in centipede grass
- Offers crabgrass suppression
- Controls existing weeds as well as those germinating from seeds
#8
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- Atrazine concentration of 4.00%
- Controls or suppresses various weeds including Annual Bluegrass, Common Chickweed, and Mouseear Chickweed
- Applicable for use in St. Augustine and Centipede grass types
- Effective against Henbit, Moneywort, Pennywort (Dollarweed), Spurge, and more
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- Atrazine concentration of 4.00%
- Controls or suppresses various weeds including Annual Bluegrass, Common Chickweed, and Mouseear Chickweed
- Applicable for use in St. Augustine and Centipede grass types
- Effective against Henbit, Moneywort, Pennywort (Dollarweed), Spurge, and more
#9
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- Controls both pre-emergent and post-emergent weeds while providing a 15-0-4 fertilizer mix.
- Specifically formulated for Centipede, Zoysia, and St. Augustine grass types.
- Not suitable for Bermuda grass or any Northern grasses.
- Best applied in early spring to enhance lawn health and weed protection.
- Application rates depend on lawn size; refer to label for detailed instructions.
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- Controls both pre-emergent and post-emergent weeds while providing a 15-0-4 fertilizer mix.
- Specifically formulated for Centipede, Zoysia, and St. Augustine grass types.
- Not suitable for Bermuda grass or any Northern grasses.
- Best applied in early spring to enhance lawn health and weed protection.
- Application rates depend on lawn size; refer to label for detailed instructions.
#10
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- Kills common broadleaf weeds while providing nitrogen boost to the lawn
- Controls dandelion, clover, ground ivy, and other listed weeds
- Best applied when weeds are actively growing
- Suitable for various grass types including Bluegrass, Fescue, and Bermudagrass
- Covers up to 6,000 sq. ft. for warm season lawns and 4,000 sq. ft. for cool season lawns
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- Kills common broadleaf weeds while providing nitrogen boost to the lawn
- Controls dandelion, clover, ground ivy, and other listed weeds
- Best applied when weeds are actively growing
- Suitable for various grass types including Bluegrass, Fescue, and Bermudagrass
- Covers up to 6,000 sq. ft. for warm season lawns and 4,000 sq. ft. for cool season lawns
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