Best Lawn Mower for St. Augustine Grass: Top Picks and Pro Tips

Choosing the right mower and lawn care tools for St. Augustine grass can improve color, density, and curb appeal. This guide highlights five relevant products, combining mowers with compatible lawn care aids to help you maintain a lush, healthy lawn. Each item is selected for compatibility with St. Augustine varieties, ease of use, and reliable performance in American yards.

The table below offers a quick snapshot of the chosen products to help you compare at a glance.

Product Brand Primary Use
Earthwise 1715-16EW 16-Inch 7-Blade Push Reel Lawn Mower Earthwise Manual mowing for precise cuts
Greenworks 40V 16″ Cordless Lawn Mower Greenworks Battery-powered mowing for convenience
Wild Badger Power Electric Lawn Mower 40V Wild Badger Power Cordless mowing with adjustable height
Sunniland St. Augustine Weed & Feed Lawn Fertilizer Generic Fertilization for greening and health
Southern Ag 006130 Atrazine St. Augustine Weed Killer Southern Ag Weed control specifically for St. Augustine

Earthwise 1715-16EW 16-Inch Push Reel Mower

Earthwise 1715-16EW 16-Inch 7-Blade Push Reel Lawn Mower

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The Earthwise 1715-16EW 16-Inch Push Reel Lawn Mower is a hand-push option designed for precise, quiet cuts that are ideal for smaller to medium-sized lawns. With a 16″ cutting width and a 7-blade ball-bearing reel, the mower provides a clean, even cut that reduces the stress on St. Augustine grass blades compared to rougher slices from some gas-powered models. The durable steel side plate construction supports consistent performance, while the 10″ composite wheels improve maneuverability on uneven turf. Its design emphasizes low maintenance and straightforward operation, making it a favorable choice for homeowners seeking a reliable, eco-friendly mowing method that’s suitable for dense, warm-season grasses like St. Augustine. The mower’s resilience helps maintain an even canopy and promotes healthy growth by preventing indiscriminate scalping of the sod.

Greenworks 40V 16″ Cordless Lawn Mower

Greenworks 40V 16 Inch Cordless Lawn Mower

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The Greenworks 40V 16″ Cordless Lawn Mower delivers gas-like performance with the convenience of battery power. A 4.0Ah battery provides about 45 minutes of runtime on a full charge, making it suitable for most residential lots up to half an acre. The 16″ deck keeps mowing light on storage and handling, while the single-lever height adjustment allows a quick transition across 5 positions (1.25″ to 3.375″). The mower supports mulching and rear-bagging options, helping manage clippings effectively for St. Augustine grass. Its lightweight design minimizes fatigue, and the tool’s compatibility with broader 40V tool ecosystems offers flexibility for yard maintenance beyond mowing. This model suits yards that prioritize ease of use and moderate mowing sessions.

Wild Badger Power Electric Lawn Mower 40V

Wild Badger Power Electric Lawn Mower 40V

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The Wild Badger Power Electric Lawn Mower provides 40V cordless power with adjustable cutting heights and a compact 14″ deck, making it suitable for small to medium lawns and tight spaces common in residential St. Augustine setups. The mower features a 5-position height lever ranging roughly from 0.98″ to 3.15″, allowing precise control to avoid scalping and maintain a healthy turf canopy. Its light weight and ergonomic design reduce fatigue during longer mowing sessions, and the compatibility with a robust 40V battery system enables dependable performance for moderate workloads. This model suits homeowners who want a balance between portability and consistent performance without a gas engine’s noise and maintenance.

Southern Ag Atrazine St. Augustine Weed Killer

Southern Ag Atrazine St. Augustine Weed Killer 32oz

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This selective herbicide targets broadleaf and grassy weeds in St. Augustine and centipede grasses, helping maintain a uniform lawn appearance by reducing unwanted invaders without harming the grass. The product is dispensed at a rate that treats up to 3,720 sq ft per quart, making it convenient for mid-sized yards. Its formulation is designed to be effective with established St. Augustine varieties and can be applied as part of an integrated lawn care regimen. Proper timing and adherence to label directions are essential to optimize weed control while preserving the turf health.

SodPods St. Augustine Palmetto Grass Plugs

SodPods St. Augustine Palmetto Grass Plugs

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SodPods Palmetto grass plugs are designed to repair and expand St. Augustine lawns. The 32-count pack includes four trays of eight plugs each, with individual plugs measuring 3″ x 3″. When mature, these plugs cover about 72 square feet per pack if planted about 18 inches apart. The texture is described as premium with soft, broad blades and a dense, carpet-like growth pattern, which helps fill thin areas and create a uniform turf texture. Using SodPods can be part of a plan to restore or enhance St. Augustine lawns that have bare patches or reduced density, providing a faster route to a lush appearance compared to overseeding alone.

Buying Guide: Key Purchase Considerations

When selecting equipment and products for St. Augustine grass, consider the following perspectives to ensure a well-rounded lawn care approach:

  • Type of mower: Choose between reel, cordless electric, or conventional gas mowers based on yard size, noise tolerance, storage space, and maintenance willingness. Reel mowers offer low maintenance and quiet operation but require more physical effort; cordless models balance ease of use with adequate power for most residential lawns.
  • Cutting deck width and height range: Larger decks reduce mowing time on bigger lawns, while a wide height adjustment helps tailor blade height for St. Augustine growth habits. Aim for a height in the range that avoids scalping while promoting a dense canopy.
  • Battery life and charging: For cordless mowers, confirm runtime matches your typical mowing session length, plus convenient charging times to avoid interruptions. Battery compatibility with other tools can add overall value if you already own other 40V tools.
  • Weed control and fertilization strategy: Herbicides (Atrazine-based) and Weed & Feed products can support weed suppression and nutrient delivery. Always follow label directions, consider weather timing, and integrate these with proper mowing height and irrigation for best results.
  • Soil and irrigation: St. Augustine grasses prefer warm-season conditions with adequate moisture. Proper irrigation timing—deep, infrequent watering—helps strengthen drought tolerance and color while reducing disease risk. Lawn plugs can accelerate recovery in bare spots, but ensure plugs are placed with appropriate spacing to promote uniform growth.
  • Maintenance and safety: Check for tool weight, blade durability, and safety features. Regular cleaning and blade checks extend mower life. For chemical products, store securely away from children and pets and use PPE as recommended on the label.
  • Regional considerations: In warmer regions, select products and seeds or plugs that are proven to adapt to St. Augustine’s drought resistance, temperature tolerance, and common pests. Local climate can influence the timing of fertilization and weed control applications.

These selections offer a mix of mowing options and lawn care treatments designed to support a healthy St. Augustine lawn. The combination of a reliable mower and targeted weed and fertilization products helps maintain consistent color, density, and weed resistance across the growing season without requiring specialized equipment or extensive maintenance.