Spreading vs. Clumping Monkey Grass: Identification and Glyphosate Control

Your invasive liriope is likely Liriope spicata (spreading/creeping), not the well-behaved L. muscari (clumping). Leaf width distinguishes them: ⅛" vs. ¼"+.

Control Without Digging

Spray glyphosate three times yearly (spring, summer, fall). Creeping liriope dies slowly—expect 2+ years for full control. Landscape fabric alone won't stop it; rhizomes penetrate most barriers.

Persistence Wins

This aggressive groundcover requires consistent herbicide pressure. Spot-treat escapes promptly.