Removing Invasive Vinca from Flower Beds: Digging, Herbicide, and Hostas

Mechanical Removal

Dig out as much root mass as possible. Vinca roots are shallow but extensive. This sets it back for a year or two.

Chemical Spot Treatment

For remaining patches, apply glyphosate (Roundup) with a paintbrush or shielded sprayer to avoid hostas. Glyphosate has no soil residual; replanting is safe after 7 days.

Hostas Are Tough

Hostas compete well with groundcovers. Their broad leaves shade out vinca seedlings. Don't over-worry—once vinca is reduced, hostas will dominate.

Prevention

Mulch 2–3 inches with compost after cleanup. Apply pre-emergent (Preen) in early spring to stop seed germination.