Why Doveweed Loves Charleston's Wet Lowcountry Soil

Doveweed thrives in exactly the kind of moist, poorly drained soil common across Charleston's flat Lowcountry terrain, and a mower is one of the main ways it spreads once it establishes, since cutting its creeping stems scatters fragments that root wherever they land.

Why It's Easy to Miss at First

Clemson Extension describes doveweed as a weed that produces stolons, creeping horizontal stems that can rapidly grow from segments distributed by mowing. It's often mistaken for grass at first glance, since its grass-like leaves blend into St. Augustine or centipede turf until a patch has already spread far enough to be obvious.

Why Charleston Sees More of It

Charleston's low-lying terrain, much of it close to tidal creeks and marsh, holds moisture at the soil surface longer than higher, better-drained ground further inland. That makes doveweed a bigger problem here than in a market with naturally better drainage, since the wet conditions it needs are already built into the landscape in low spots across the county.

Why Mowing Height Still Matters

Mowing height works in your favor here the way it does with several other lawn weeds, just for a different reason. Doveweed seeds need light to germinate, so keeping grass at the upper end of its recommended height shades the soil surface and limits how many new plants get the light they need, while also reducing how many stolon fragments get cut and scattered in the first place.

What Actually Fixes It

Correcting the underlying drainage problem does more long-term good than repeated herbicide treatment on a patch that will keep coming back as long as the soil underneath stays consistently wet. A section of lawn that holds water longer than the rest of the yard after a rain is worth addressing at the drainage level, not just the weed level.