Lawn Guardian

How to Get Rid of Common Mallow

Malva neglecta

broadleaf weedUSDA zones 3–10Active: spring, summer, fall

Low-growing annual/biennial with round, scalloped leaves and a tough taproot. Produces small pale flowers and round, cheese-wheel-shaped seed clusters.

How to identify it

Round leaves with 5-7 shallow lobes and scalloped edges; small white-pink flowers; flat, round seed clusters resembling tiny cheese wheels.

Treatment options

Cultural (prevention): Hand digging

Dig out including deep taproot. Difficult once mature. Small plants pull easier.

When: Dig when soil is moist in spring

Organic: Vinegar spot treatment

Horticultural vinegar burns foliage but may not kill the deep taproot.

When: Apply on hot, sunny days; repeat as needed

Chemical: Triclopyr + 2,4-D

Combination broadleaf herbicide for tough-to-kill mallow. Use with surfactant.

When: Apply in fall for best systemic kill

Active ingredient: Triclopyr + 2,4-D — e.g. T-Zone, Speedzone

Grass safety: always match herbicides to your grass species — products safe on Kentucky bluegrass can kill St. Augustine or centipede. Lawn Guardian checks this automatically against your lawn profile.

Stop common mallow at the right moment, automatically

Lawn Guardian turns this guidance into a schedule timed to your USDA zone and this week's actual weather — and adapts every time you log what you've done.

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Related weeds

Sources: Purdue University Turfgrass Science: Use Growing Degree Days to Better Time Your Applications · University of Missouri Extension: Cool-Season Grasses: Lawn Maintenance Calendar · University of Minnesota Extension: Pre-emergent Herbicides for Crabgrass Control in Lawns