Best Weed Killer St Augustine Grass in 2025
Updated on June 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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- 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
#3
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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)
#4
15% Off
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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
#5
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- Controls a variety of weeds including Henbit, Clover, and Chickweed.
- Suitable for St. Augustine and Centipedegrass.
- Covers up to 3,720 sq. feet with a 32 oz liquid concentrate.
- Ready-to-spray format allows for convenient application.
- Application instructions vary based on grass type and dimensions.
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- Controls a variety of weeds including Henbit, Clover, and Chickweed.
- Suitable for St. Augustine and Centipedegrass.
- Covers up to 3,720 sq. feet with a 32 oz liquid concentrate.
- Ready-to-spray format allows for convenient application.
- Application instructions vary based on grass type and dimensions.
#6
8% Off
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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
13% Off
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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
#8
11% Off
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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
#9
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- Easy-to-spread granules for convenient application
- Recommended for application in spring and fall
- Suitable for all St. Augustine grass varieties
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- Easy-to-spread granules for convenient application
- Recommended for application in spring and fall
- Suitable for all St. Augustine grass varieties
#10
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- Liquid fertilizer and iron supplement for rapid lawn greening in 3 days
- Dual-action formula enhances grass color and provides nutrients
- Suitable for all grass types; best results when applied regularly from spring to fall
- Promotes a healthier lawn that contributes to air quality and reduces soil erosion
- Easy hose attachment allows for coverage of up to 2,000 sq ft without the need for spreaders or granules
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- Liquid fertilizer and iron supplement for rapid lawn greening in 3 days
- Dual-action formula enhances grass color and provides nutrients
- Suitable for all grass types; best results when applied regularly from spring to fall
- Promotes a healthier lawn that contributes to air quality and reduces soil erosion
- Easy hose attachment allows for coverage of up to 2,000 sq ft without the need for spreaders or granules
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