Floratam, a popular St. Augustinegrass variety, thrives in warm Southern climates but can invite stubborn weeds if not properly treated. The right weed killer for Floratam lawns blends effective broadleaf and grassy weed control with lawn-friendly fertilization. This guide reviews top options formulated for Southern lawns, including Floratam, to help homeowners choose products that curb weed growth while supporting healthy turf. Each product section includes a summary of key features to help you compare quickly.
| Product | Best For | Coverage | Notes |
|---|---|---|---|
| BioAdvanced 3-in-1 Weed and Feed for Southern Lawns | Weed control + fertilizer | Up to 6 months weed protection | For Bermudagrass, St. Augustinegrass (including Floratam) |
| BioAdvanced Season Long Lawn Weed Killer + Preventer | Weed control + prevention | 4,000 sq ft coverage | Includes Floratam-friendly Southern lawns |
| Scotts Turf Builder Bonus S Southern Weed & FeedF2 | Weed control + fertilizer | Up to 10,000 sq ft | Florida weed targets include dollarweed, clover |
| Ortho WeedClear Lawn Weed Killer Ready-to-Spray | Fast-acting weed control | Multiple lawn types | Kills over 250 listed weeds |
| Scotts Turf Builder Southern Triple Action | Weed control + fire ant prevention + fertilizer | 8,000 sq ft | Designed for Southern grasses including Floratam |
BioAdvanced 3-in-1 Weed and Feed for Southern Lawns
BioAdvanced 3-in-1 Weed and Feed for Southern Lawns is tailored for Southern turfgrasses, including Floratam St. Augustinegrass. It combines broadleaf weed control with a lawn fertilizer and a long-lasting preventive component. Expect up to six months of weed prevention, helping curb common Floratam foes like crabgrass, dandelion, dollarweed, and clover. The formulation aims to promote healthy growth while reducing weed pressure, making it a convenient all-in-one option for Florida lawns that face warm-season challenges.
BioAdvanced Season Long Lawn Weed Killer + Preventer for Southern Lawns
This product delivers weed killing that lasts up to six months, plus prevention to reduce new growth. It specifically targets a range of broadleaf weeds common to Floratam-friendly lawns, including dandelion, clover, chickweed, and dollarweed. The formula is designed for Southern lawns and treats up to 4,000 square feet, making it a practical option for medium yards. By combining control and prevention, it reduces the need for frequent applications while maintaining lawn health.
Scotts Turf Builder Bonus S Southern Weed & FeedF2
Scotts Turf Builder Bonus S Southern Weed & FeedF2 blends weed control with fertilizer and a thickening effect to crowd out future weeds. It targets key Florida weeds such as dollarweed, clover, dandelion, chickweed, oxalis, and henbit. Designed for Florida lawns, it’s intended for use when grass and weeds are actively growing and requires watering in after application. The product covers up to 10,000 square feet, making it suitable for larger Floratam lawns seeking a two-in-one solution.
Roundup Weed and Grass Killer₄ with Pump ‘N Go
Roundup Weed and Grass Killer₄ is a versatile option effective against a wide range of weeds, including dandelion and clover, with a pump sprayer that simplifies application around flower beds, trees, and other landscape features. It delivers root-level kill and is described as rainproof in 30 minutes, with results visible in hours. While not Floratam-specific, its broad-spectrum action makes it a practical choice for homeowners facing stubborn Floratam-adjacent weeds in mixed landscapes, though heavy use may impact nearby desirable grasses if not applied carefully.
Ortho WeedClear Lawn Weed Killer Ready-to-Spray
Ortho WeedClear Lawn Weed Killer Ready-to-Spray targets over 250 listed weeds, including dandelion, dollarweed, and chickweed, without harming established lawns when used as directed. It’s suitable for a range of warm-season grasses, including St. Augustinegrass varieties in Florida. The ready-to-spray format provides quick and convenient application, making it an accessible option for homeowners seeking rapid weed control with minimal setup. Always follow label directions to protect Floratam roots and prevent turf damage.
Spectracide Weed And Grass Killer
Spectracide Weed And Grass Killer comes with an AccuShot continuous power sprayer for targeted application along driveways, walkways, and around trees and shrubs. It promises quick visible results, with the ability to replant in a short window after treatment. While not Floratam-specific, it offers a strong option for spot treatments where weeds invade Floratam lawns or nearby landscape features. Precision spraying helps minimize exposure to desirable turf.
Scotts Turf Builder Southern Triple Action
Scotts Turf Builder Southern Triple Action provides a 3-in-1 solution: weed control, fire ant prevention, and lawn fertilization. It targets Florida-adapted weeds and offers protection against pests that commonly affect Floratam lawns, such as fire ants. This product supports St. Augustinegrass health and helps reduce future weed establishment while strengthening the turf to withstand heat and drought stress that are typical of Southern climates. Available coverage makes it suitable for mid- to large-sized Floratam lawns.
Buying Guide: Key Purchase Considerations For Floratam Lawns
When selecting a weed killer for Floratam grass, consider the following aspects to ensure effective control without lawn damage:
- Grass compatibility: Choose products labeled for St. Augustinegrass, especially Floratam, to minimize injury and maximize weed control.
- Weed spectrum: Identify the common Floratam yard weeds (dandelion, dollarweed, clover, crabgrass, etc.) and select products that target those species.
- Seasonality: Some formulations offer seasonal prevention or extended control. Plan applications to align with peak weed growth and Floratam’s growing cycle.
- Spread and coverage: Verify square footage coverage to avoid over- or under-application. Larger yards may benefit from concentrated formulas with clear coverage rates.
- Application method: Granules, ready-to-spray liquids, and pump-spray options each have pros. Granules often provide longer-lasting effects, while liquids enable precise spot-treatments.
- Safety and environmental impact: Follow label directions, particularly near waterways or vegetable gardens. Some products require watering in after application or may have restricted use around wildlife.
- Combination products: Weed killers that pair weed control with fertilizer can save time and promote turf recovery, but verify compatibility with Floratam care guidelines.
- Re-entry and mowing guidance: Some products require a waiting period before re-entry to treated areas or mowing adjustments. Adhere to these guidelines for safety and efficacy.
In summary, the best options for Floratam lawns balance effective weed control with lawn nourishment. For homeowners seeking convenience, multi-action products offering weed control plus fertilizer or prevention features are compelling. For those preferring rapid, targeted treatment, spray-ready solutions provide flexibility. Always consult the product label for Floratam compatibility and follow application steps to maintain a healthy, weed-resistant St. Augustinegrass lawn.