We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Before You Buy Weed Killer for Gravel Weed Killers for Gravel Comparison Table Best Overall Runner-Up Best Bang for the Buck Best Organic Best Pet-Safe Best Fast-Acting Best Root-Killing Or, DIY Your Own Weed Killer FAQs Meet the Tester Even with a weed barrier in place, using a weed killer for gravel is often the most effective way to keep driveways and pathways clear of unwanted growth. Over time, dust and dirt settle into gravel, giving weed seeds the foothold they need to germinate and spread. But with hundreds of different weed killers available in stores and online, finding one that’s both safe and effective can be a challenge. To help you narrow down your options, we tested seven popular products, monitoring their effects after 1 hour, 1 day, and 1 week.…