Weed Killer for St. Augustine Lawns

Weed Killer for St. Augustine Lawns — St. Augustine grass is a popular warm-season turf, but it is also more sensitive to herbicides than many other grass types. Using the wrong weed killer can cause serious damage. This collection features selective herbicides that work safely on St. Augustine lawns, helping you control weeds without harming your turf when applied as directed.

From common broadleaf weeds like clover and spurge to nutsedge and certain grassy weeds, these professional-grade products are widely used on St. Augustine lawns. This collection is designed to help you choose products that balance strong weed control with turf safety.

When you purchase from Lawn Synergy, you’re backed by expert support. If you’re unsure which product is right for your lawn—or need help with mixing rates, timing, or application techniques—our team is here to help you get professional results with confidence.

Weeds This Collection Helps Control in St. Augustine

• Broadleaf weeds: clover, spurge, chickweed, plantain, dandelion
• Sedges: yellow nutsedge and other sedge species
• Grassy weeds: crabgrass and certain annual grassy weeds
• Tough weeds: deep-rooted and difficult-to-control warm-season weeds

Quick Guide: Pick the Right Weed Killer