Answering the buyer’s question: these fall weed and feed products are designed to kill broadleaf weeds and feed St. Augustine grass as temperatures cool, helping your lawn green up next spring. They’re best for homeowners wanting simple, seasonal lawn health helps from reputable brands. The top picks below cover varied lawn sizes, weed pressures, and feeding styles, with clear guidance on who each product suits best.
| Product | Coverage | Best For |
|---|---|---|
| Scotts Turf Builder WinterGuard Fall Weed & Feed3 (4000 sq. ft.) | 4000 sq. ft. | Lawn owners with smaller to mid-sized yards seeking broad weed control and fall feeding |
| The Andersons Premium Weed and Feed 24-0-16 | Up to 5000 sq. ft. | Balanced quick- and slow-release nitrogen for a faster green-up |
| The Andersons Professional Surge Weed and Feed 16-0-9 | Up to 16000 sq. ft. | Larger lawns needing heavy weed control and robust feeding |
| Sunniland St.Augustine Weed & Feed Lawn Fertilizer (5000 sq ft) | 5000 sq. ft. | Simple, easy-to-use option for St. Augustine grass |
| GreenView Fairway Formula Spring Fertilizer Weed and Feed and Crabgrass Preventer (5,000 sq ft) | 5000 sq. ft. | Crabgrass prevention combined with weed control and feeding |
Scotts Turf Builder WinterGuard Fall Weed & Feed3
Product overview: Scotts Turf Builder WinterGuard Fall Weed & Feed3 combines weed control with fall lawn feeding. It targets over 50 listed lawn weeds and provides essential nutrients to St. Augustine grass as temperatures drop. Best for lawns that routinely battle broadleaf weeds in the fall and want a single-step solution.
Best for: small to medium yards with active fall weeds seeking both control and fertilization in one application. The product’s timing guidance—apply when weeds are actively growing and temperatures range from 60°F to 90°F—helps ensure efficacy.
Limitation: Not ideal for very large lawns unless paired with multiple applications or a larger-format option. Keep off newly seeded areas until established.
The Andersons Premium Weed and Feed 24-0-16
Product overview: The Andersons Premium Weed and Feed 24-0-16 balances weed control with both quick- and slow-release nitrogen. It covers up to 5,000 sq ft and targets existing dandelions and more than 250 broadleaf weeds, supporting a faster green-up after application.
Best for: homeowners with moderate to heavy weed pressure who want a steady nutrient release for a longer feeding window. The inclusion of both fast- and slow-release nitrogen helps maintain color as days shorten.
Limitation: Higher weed load may require a follow-up treatment in some cases. Ensure the lawn is actively growing for optimal results.
The Andersons Professional Surge Weed and Feed 16-0-9
Product overview: The Professional Surge Weed and Feed combines robust weed control with feeding designed for larger areas. It eliminates over 250 common weeds, including dandelions, clover, chickweed, and plantain, while promoting thicker, greener turf.
Best for: larger lawns or properties that require high-efficiency weed suppression and substantial feeding across extended areas. It’s positioned for ongoing performance through the growing season and into cooler periods.
Limitation: As a professional-grade option, ensure proper application rates to avoid potential over-fertilization in smaller yards.
Sunniland St.Augustine Weed & Feed Lawn Fertilizer
Product overview: Sunniland St.Augustine Weed & Feed Fertilizer is specifically marketed for St. Augustine grass, offering easy spreadability and handling. It supports two applications per year—spring and fall—helping maintain steady growth and weed suppression.
Best for: homeowners seeking a straightforward, St. Augustine-specific option with simple application. It’s a solid choice for regular fall maintenance and weed control with minimal complexity.
Limitation: Fewer options for very large yards or high-weed-pressure situations; consider complementing with a larger coverage product if needed.
GreenView Fairway Formula Spring Fertilizer Weed and Feed
Product overview: GreenView Fairway Formula offers three key lawn treatments in one application, including crabgrass prevention, weed control, and feeding. It’s designed to block crabgrass for up to four months while killing over 200 broadleaf and grassy weeds.
Best for: lawns facing both weed and crabgrass challenges with a desire for extended protection. While labeled as spring-focused, the product’s weed-and-feed approach remains relevant for transitional seasons when temperatures rise.
Limitation: Timing is important; ensure you apply during appropriate weather windows to maximize crabgrass prevention and weed control.
Buying Guide: Fall Weed And Feed For St. Augustine Grass
What should I consider when choosing a fall weed and feed for St. Augustine?
- Weed spectrum: Look for products that target common broadleaf weeds in your area, such as dandelions and clover. Some formulas list 200+ weeds.
- Nitrogen type and timing: Quick-release nitrogen gives a faster green-up; slow-release nitrogen provides longer feeding. Fall timing matters to support root growth before winter.
- Coverage area: Match product coverage to your lawn size. Larger areas may require program-style offerings or higher-pound bags.
- Type of weed control: Post-emergent vs. pre-emergent or a combination (weed killer + fertilizer) is common. Ensure your lawn’s weed stage aligns with product dosing.
- Granular vs. liquid: Granular formulations are easier for standard spreaders; some products offer more even distribution in large lawns.
- St. Augustine compatibility: Some products are formulated specifically for St. Augustine or are safe for this grass type. Always verify label directions for your grass.
Quick comparisons
- Best overall for small yards: Scotts WinterGuard Fall Weed & Feed3 (4000 sq ft) — strong weed control with fall feeding in a compact size.
- Best for fast green-up: The Andersons Premium Weed and Feed 24-0-16 — combines quick- and slow-release nitrogen, broad weed coverage.
- Best for large properties: The Andersons Professional Surge Weed and Feed 16-0-9 — high coverage and robust weed suppression.
- Best for St. Augustine focus: Sunniland St.Augustine Weed & Feed — simple, grass-specific option with straightforward use.
- Best all-around with crabgrass prevention: GreenView Fairway Formula — adds crabgrass prevention and broad weed control in one.
Frequently asked questions
- When is the best time to apply fall weed and feed? Answer: Apply when weeds are actively growing and temperatures are between 60°F and 90°F for best results, typically in fall before the first hard freeze.
- Can I use fall weed and feed on St. Augustine grass if it’s damaged by heat? Answer: If the lawn is stressed, wait for recovery before applying to avoid further damage. Follow label directions.
- Will fall weed and feed harm new grass or seedlings? Answer: Most products specify avoiding newly seeded areas; wait until established, per label guidance.
- Do I need a separate crabgrass preventer? Answer: Some products include crabgrass prevention; if not, consider a separate pre-emergent as needed for your region.
- How much product should I apply? Answer: Apply according to the product’s rate per 1000 sq ft on the label; do not exceed recommended amounts.
- Is there a difference between fall and spring formulas for St. Augustine? Answer: Yes. Fall formulas emphasize weed control and root support heading into winter, while spring formulas focus on green-up and early-season growth.