Selective Weed Control in Periwinkle Groundcover

The Problem

Periwinkle (Vinca minor) is a popular evergreen groundcover, but weeds—especially grasses—invade it. Hand-pulling damages the periwinkle mat.

Solution: Grass-Selective Herbicide

Ortho Grass-B-Gon (Fluazifop-P-butyl) kills annual and perennial grasses (bermudagrass, quackgrass, crabgrass) without harming most broadleaf ornamentals, including periwinkle.

Application Tips

• Test a small area first; wait 7–10 days to confirm no injury.
• Apply when grasses are actively growing (spring through fall).
• Two applications 7 days apart for tough weeds.
• Do not mow before spraying; rainfast in 1 hour.
• Use ready-to-spray 24 oz bottle; no mixing needed.

Caution

Always read the label. Avoid drift onto desirable grasses (lawn). Periwinkle tolerance is generally good, but a spot test is essential.