Spectracide Weed & Grass Killer
Where to Buy
| Retailer | Price | Last seen | Buy |
|---|---|---|---|
 Amazon 30-day returns (in store too) | $6.00 | Jun 10, 2026, may have changed | Buy Now |
 Walmart 90-day returns (in store too) | $6.24 | Jun 28, 2024, may have changed | Buy Now |
B buildclub.com | $6.92 | Jul 27, 2026, may have changed | Buy Now |
 Lowes 90-day returns (in store too) | $6.98 | Jun 15, 2025, may have changed | Buy Now |
B boonevillelumber | $7.59 | Apr 7, 2026, may have changed | Buy Now |
Prices are collected from retailer listings; each row shows the date we last saw that price. Return and shipping terms are each store's standard policy from our retailer research (April 2026). Some products and categories have different terms, so check with the store before you buy.
Pros
- •Eliminates common unwanted vegetation like crabgrass and dandelions with visible results within hours or a couple hours of application
- •Convenient ready-to-use sprayer with adjustable spray patterns for easy spot treatments around bushes, walkway cracks, and larger patches
- •Rainproof after approximately 15 minutes of drying, maintaining effectiveness even in wet conditions
- •Excellent value for the amount of product, with refills available for reuse of the container and sprayer
- •Glyphosate-free alternative to other herbicide brands
- •Works faster on warm days and can be effective even in cooler conditions
- •Allows for easy hand removal of dead plants within 2-3 days of treatment
- •Minimal damage to nearby desirable plants when applied carefully
Cons
- •Requires multiple applications for effectiveness, especially on difficult weeds, with some users needing frequent repurchases
- •Ineffective on certain weed types including poison ivy and spindly, prickly weeds that lack substantial leafy structures
- •Performance is highly weather-dependent; cold weather delays results and effectiveness declines significantly over time
- •Heavy and cumbersome jug with a short spray tube, making it impractical for larger areas
- •Formula effectiveness has reportedly declined, with some users reporting results lasting only 2-3 weeks instead of the promised 3 months
- •Fails to prevent regrowth after rain in some cases
- •Works best on weeds with prominent leafy structures; less effective on other vegetation types
Bottom Line
Spectracide Weed & Grass Killer excels at rapid spot treatments and offers solid value for small to medium yard jobs, but don't expect a one-and-done solution—plan for multiple applications and potential regrowth. If you're dealing with extensive areas, stubborn weeds like poison ivy, or want longer-lasting results without the hassle of frequent reapplication, you might want to explore other herbicide options or consider a complementary approach using non-toxic alternatives like vinegar and salt solutions for broader, more sustainable weed control.
What Reviewers Are Saying
📚More About Spectracide Weed & Grass Killer
Discussion
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