Best Fertilizer and Crabgrass Killer for Lawns: 5 Top Picks

Answer: For effective lawn care, combine a fertilizer with crabgrass prevention and weed control. The top picks below target common lawn weeds, feed grass, and curb crabgrass for a thicker, greener lawn. Best for homeowners seeking simple, all-in-one solutions, best for large lawns, and best for ongoing weed prevention.

The following table summarizes the five selected products, highlighting who they’re best for and why they stand out. Use it as a quick reference to compare coverage, weed-killing scope, and nutrient delivery.

Product Best For Why It Stands Out
Scotts Turf Builder Triple Action1 (4,000 sq ft) Small to mid-sized lawns 3-in-1 formula: feeds, kills listed weeds, and prevents crabgrass
BioAdvanced 5-in-1 Weed and Feed (4,000 sq ft) Weeds-heavy lawns Kills 200+ weeds, long prevention, strong crabgrass control
Scotts Turf Builder Triple Action1 (12,000 sq ft) Medium to large lawns Same 3-in-1 benefits with bigger coverage
BioAdvanced 5 In 1 Weed and Feed (10,000 sq ft) Large yards Robust weed control and long-lasting protection
Ortho WeedClear Lawn Weed Killer Ready-To-Spray Spot treatments and easy applications Fast-acting hose-end spray for crabgrass, dandelion, clover

Note: All products are designed to fertilize lawns while addressing broadleaf weeds and crabgrass. Coverage, weed species targeted, and timing vary by product, so select based on your lawn size, weed pressure, and preferred application method.

Scotts Turf Builder Triple Action1 (4,000 sq ft) — 3-in-1 Formula

Scotts Turf Builder Triple Action1 product image

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Brand: Scotts. Features: 3-in-1 formula that kills listed lawn weeds, prevents crabgrass, and feeds grass to build thick, green lawns. Suitable for Bahiagrass, Centipedegrass, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, Tall Fescue, Fine Fescue, and Zoysiagrass. Controls weeds such as dandelion, clover, dollarweed, ground ivy, chickweed, plantain, henbit, and English daisy. Best for small to mid-sized lawns needing a combined weed control and feeding solution.

Best for: Homeowners who want an all-in-one lawn care product that both feeds and prevents crabgrass. Limitation: Large weed lists vary by region; follow label directions for your grass type and season. This product suits smaller areas where 4,000 sq ft coverage is adequate.

BioAdvanced 5-in-1 Weed and Feed (4,000 sq ft)

BioAdvanced 5-in-1 Weed and Feed product image

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Brand: BioAdvanced. Features: Kills over 200 listed weeds, prevents new weeds for up to 6 months, and controls large crabgrass with four weed killers. Applicable in spring or early summer, even if crabgrass is already present. Best for: Lawns with heavy weed pressure and a need for long-lasting prevention. Caution: Long prevention window means ensure proper timing and avoid applying during extreme heat or drought conditions.

Scotts Turf Builder Triple Action1 (12,000 sq ft)

Scotts Turf Builder Triple Action1 12,000 sq ft image

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Brand: Scotts. Features: 3-in-1 formula for larger areas; kills listed weeds, prevents crabgrass, and feeds grass to promote thickness and color. Best for: Medium-to-large lawns needing broad coverage without multiple bags. Caution: Ensure the product is compatible with your grass type and avoid over-application to prevent burn on sensitive grasses.

BioAdvanced 5 In 1 Weed and Feed (10,000 sq ft)

BioAdvanced 5 In 1 Weed and Feed image

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Brand: BioAdvanced. Features: 5-in-1 formula to kill weeds, feed, strengthen, and prevent weeds for up to 6 months; kills large crabgrass and forms a barrier against new weeds. Best for: Large properties where a single bag covers up to 10,000 sq ft. Caution: Follow application timing for seasonal weed cycles to maximize effectiveness.

Ortho WeedClear Lawn Weed Killer Ready-To-Spray

Ortho WeedClear Ready-To-Spray image

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Brand: Ortho. Features: Hose-end application that kills weeds including crabgrass, dandelion, and clover down to the root; up to 5,000 sq ft coverage; fast-acting with one application. Best for: Quick spot treatments or homeowners preferring a spray-on method. Caution: Hose-end sprayers can require careful calibration to avoid overspray on desirable grasses.

Scotts Turf Builder Weed and Feed5 (4,000 sq ft)

Scotts Turf Builder Weed and Feed5 image

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Brand: Scotts. Features: Weed killer plus lawn food combined; helps thicken lawns and crowd out future weeds; targets dandelion and clover; suitable for lawns up to 4,000 sq ft. Best for: Lawns that need both control and feeding with a manageable bag size. Caution: Not suitable for St. Augustinegrass or several warm-season grasses; check compatibility with your lawn type.

GreenView Premium Formula Spring Fertilizer Weed & Feed and Crabgrass Preventer

GreenView Spring Fertilizer Weed & Feed image

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Brand: GreenView. Features: Season-long feeding with 66.3% slow-release nitrogen and potassium; Dimension-based pre-emergent barrier to prevent crabgrass for up to 180 days; controls over 200 broadleaf weeds. Best for: Gardens and lawns needing long-term nutrient delivery plus crabgrass prevention. Limitation: Higher upfront cost and longer payback period in cooler areas where growth is slower.

Scotts WeedEx Prevent with Halts — Crabgrass Preventer

Scotts WeedEx Prevent with Halts image

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Brand: Scotts. Features: Pre-emergent weed prevention for listed lawn weeds; applies in early spring or fall; works on all grass types except Dichondra or Bentgrass. Best for: Preventing weed germination before they appear. Caution: Not suitable for lawns with Dichondra or Bentgrass; timing is important for effectiveness.

Buying Guide

What should you consider when choosing a fertilizer with crabgrass prevention?

  • Coverage needs: Choose a product that matches your lawn size. Larger lawns may benefit from bigger bags or higher coverage per bag.
  • Weed pressure: If you have many broadleaf weeds, a 5-in-1 or multi-weed product can be more effective.
  • Seasonal timing: Pre-emergent crabgrass preventers work best in early spring or fall. Weed-and-feed options work when weeds are actively growing.
  • Grass compatibility: Some formulas are not suitable for St. Augustinegrass, Bentgrass, or other warm-season grasses. Confirm compatibility with your lawn type.
  • Application method: Hose-end sprays are convenient for spot treatments; granules are good for even distribution across larger areas.

Frequently Asked Questions

  1. What is the difference between weed killer and weed preventer?
    – Weed killers target active weeds; weed preventers reduce weed germination before they appear.
  2. Can I apply fertilizer and crabgrass preventer at the same time?
    – Many products combine both functions, but always follow the product label for correct timing and frequency.
  3. How often should I fertilize my lawn with weed prevention?
    – Most products are designed for seasonal use; do not exceed the recommended two times per year for weed-and-feed formulas.
  4. Is crabgrass prevention effective in cool seasons?
    – Pre-emergents are typically aligned with warm-season weed cycles; check label guidance for your climate zone.
  5. Can I use these products on all grass types?
    – Not all formulas are suitable for every grass type; verify compatibility with your specific lawn grass before application.