Managing johnsongrass and other invasive grassy weeds in American lawns requires targeted controls that work with common turfgrasses. This article highlights five effective products, outlining how they kill crabgrass, foxtail, goosegrass, and similar grasses while protecting desirable grasses. We also offer a practical buying guide to help you choose the right approach for your lawn’s conditions and your geographic region.
Product Spotlight (Summary)
- Roundup for Lawns Crabgrass Destroyer2 — Ready-to-use; kills crabgrass and grassy weeds at the root.
- Monterey Grass Getter — Post-emergent, selective, controls weedy grasses without harming ornamentals.
- The Andersons Barricade — Granular pre-emergent providing up to 5,800 sq ft of coverage; prevents crabgrass and other weeds.
- Jonathan Green Black Beauty Original Grass Seed Blend — Tall fescue blend for drought tolerance and durable turf establishment.
- Note: All products are designed for lawn application; always follow label directions for best results.
Roundup For Lawns Crabgrass Destroyer2 Overview
Roundup for Lawns Crabgrass Destroyer2 is a ready-to-use weed killer designed to eradicate crabgrass and other grassy weeds from lawn turf. It targets weeds at the root, helping to prevent regrowth and reduce weed competition in common Kentucky bluegrass, fine fescue, and other cool-season grasses. The product emphasizes effectiveness on tough crabgrass while remaining suitable for typical lawn grasses when applied according to label directions.
Monterey Grass Getter Bundled With Measuring Spoon
Grass Getter is a post-emergent, selective herbicide that tackles a wide range of grassy weeds in beds, ornamentals, and non-t lawn areas, including johnsongrass and Bermudagrass. It provides systemic control that travels to the roots, helping suppress annual and certain perennial grasses that compete with desirable landscape plantings. Note that it is not intended for use in lawns, but is suitable for ornamental areas and features fast-acting coverage for treated weeds.
The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control
Barricade is a granular pre-emergent designed to prevent weeds from germinating, including crabgrass, poa annua, and goosegrass. It uses prodiamine as the active ingredient and employs DG Technology (dispersible granules) for rapid dissolution after watering. This product is intended to shield established turf during early spring and fall applications, offering professional-grade weed prevention that reduces the likelihood of weed establishment in future seasons.
Jonathan Green Black Beauty Original Grass Seed Blend
Black Beauty Original is a 100% tall fescue blend designed for cool-season lawns. The seed features drought-tolerant roots that can grow deeply to withstand heat, while a waxy leaf coating improves moisture retention. This blend is well-suited for sunny and shady areas alike, offering a robust turf establishment with a deep, durable root system to deter weed invasion, including johnsongrass encroachment when paired with proper lawn care practices.
Buying Guide: Key Purchase Considerations
- Weed type and turf compatibility: Match the product’s target weeds with your lawn species. Pre-emergents prevent germination, while post-emergents kill existing weeds. Ensure compatibility with your grass type to avoid damage.
- Application timing: Pre-emergents are often applied in early spring or fall; post-emergents work once weeds are visible. Follow label timing for best results and seasonal conditions.
- Safe use around ornamentals and hardscapes: Some products are formulated for lawns only; others can be used near shrubs or garden beds. Read labels carefully to avoid injury to desired plants.
- Root and soil health impact: Choose products with roots-first action for stubborn johnsongrass while preserving soil ecology. Assess impact on beneficial soil organisms and turf recovery time.
- Coverage area and reapplication: Consider square footage covered and interval between applications. Base decisions on lawn size, patchiness, and weed pressure to minimize repeat treatments.
- Seed and turf establishment: For lawns establishing new turf or reseeding, select products that support seed integrity and do not hinder germination. Use appropriate timing relative to seeding.
- Safety and environment: Opt for products with clear safety instructions and lower environmental impact where possible. Keep pets and children away as directed on the label.
- Combination strategies: A thoughtful plan may combine pre-emergents, post-emergents, and quality seed blends to both prevent weed emergence and promote dense, healthy turf that resists johnsongrass invasion.
- Geographic considerations: Regional climate, irrigation practices, and soil type influence weed pressure. Tailor choices to your area’s typical johnsongrass challenges and lawn species.