Eliminating Weeds in Brick Walkway Joints

Weeds pushing through sand-filled brick joints are a common frustration, even with proper base preparation (gravel, weed barrier, sand). Once established, they're tough to eradicate completely. For total vegetation control, non-selective herbicides labeled for hardscape use can kill everything green—but use caution near waterways, and check local regulations. These products sterilize soil for a season or more, so they're a nuclear option.

If you prefer to keep planting pockets for moss, thyme, or other groundcovers, hand-weeding is your only safe bet. For a middle ground, consider polymeric sand for joint refilling. It hardens when activated with water, resisting weed germination and washout better than plain sand. Reapply after thorough cleaning of existing joints.

Long-term, regular maintenance—sweeping, spot-treating, and refreshing joint material—keeps walkways looking crisp. Accept that some vigilance is inevitable with any sand-set paver system.