# Roundup For Lawns Tough Weed Killer *Published: 2025-05-18 | Updated: 2025-07-18 | Source: https://shopsavvy.com/products/roundup-for-lawns-tough-weed-killer* --- **Brand:** Roundup **Price Range:** $19.99 - $51.36 across 36 retailers ## Pros - Provides three months of effective weed prevention. - Significant reduction in time spent weeding, especially useful in hot weather. - Effectively killed crabgrass after multiple applications in some instances. - Ideal for use in warmer climates, like Phoenix. ## Cons - Weeds returned after three months, requiring reapplication. - Caused damage to the surrounding lawn in the treated areas. - Required several rounds of application for desired results. - Less effective on general weeds, delivering mixed results. - Minimal effectiveness even with heavy application. - Does not deliver results within the time frame claimed on the label. - More expensive than cheaper alternatives, which performed similarly. - User feedback suggests a homemade solution with vinegar and dish detergent as more cost-effective. ## Specifications | Attribute | Value | |-----------|-------| | title | Roundup Weed Killer, 1.33-Gallon Ready-to-Use | ## About This Product Make troublesome lawn weeds a problem of the past. Roundup® For Lawns₁ is a ready-to-use tough weed killer for Northern grasses that kills weeds, roots and all (when used as directed), with up to 3 month weed control (as listed). This product kills 253 types of weeds (see inside booklet for weed list), including crabgrass, dandelion, clover, yellow nutsedge, poison ivy, chickweed, oxalis, and purslane. In addition, it starts working immediately and is rainproof in 3 hours. Roundup® For Lawns₁ is for use on Northern grasses, including Kentucky Bluegrass, Perennial Ryegrass, Fescue spp. including Tall, Red, and Fine Leaf Fescues, and Zoysiagrass. For best results, apply this product to actively-growing weeds during the early growth stages. Use in the spring or fall when daytime temperatures are between 45°F and 90°F. The easy reach extendable spray wand makes application a breeze with its continuous spray. Do not allow people or pets to enter the treated area until sprays have dried. Rou... ## Last Seen Prices | Retailer | Price | Availability | Last seen | Store's standard terms | |----------|-------|-------------|-----------|------------------------| | [retailers/cheapesthydro](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/c0e0e54b-935f-f2f9-e869-fc12a22f7aa7?source=shopsavvy&medium=product-page) | $19.99 | In Stock | 2025-07-22 (may have changed) | | | [The BuildClub](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/Hp0PCW2lZZNw6Sh7fN2E?source=shopsavvy&medium=product-page) | $24.92 | In Stock | 2022-08-15 (may have changed) | | | [Amazon](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/ckfMoYj34Lb0rXuFE0T5?source=shopsavvy&medium=product-page) | $24.97 | In Stock | 2026-10-04 | 30-day returns (in store too) | | [Blain's Farm & Fleet](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/eNSJUEEGaHtPA7mrOlrI?source=shopsavvy&medium=product-page) | $26.49 | In Stock | 2022-08-15 (may have changed) | | | [Lowes](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/fhRJdkGqCGNJ2VSS6i52?source=shopsavvy&medium=product-page) | $26.98 | In Stock | 2025-05-18 (may have changed) | 90-day returns (in store too) | | [retailers/farmandfleet](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/cSI5naWPiITgqdqG7Zqr?source=shopsavvy&medium=product-page) | $27.99 | In Stock | 2025-05-18 (may have changed) | | | [Allendale True Value](https://shopsavvy.com/api/redirect/products/JBl4FqUbnKw6WBzwrFIb/offers/GP2dE5t3Ox2SJPNKHWh9?source=shopsavvy&medium=product-page) | $27.99 | In Stock | 2022-08-03 (may have changed) | | | [R.P. 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