You spray it, it browns out for two weeks, and then it is back thicker than before. Virginia buttonweed is the toughest weed we fight around here, and most store-bought sprays do not touch it.
If you live around Walker, Denham Springs, or Watson and you have a low, sprawling weed with little white star-shaped flowers that will not quit no matter what you spray on it, I already know what it is. Virginia buttonweed. It is the most common call I get about a weed that just will not die.
Most homeowners reach for a general broadleaf spray, it browns the top growth, and three weeks later it is back thicker than before. That is how buttonweed is built.
Why It Shrugs Off Regular Weed Killer
Virginia buttonweed has a deep, wide root system and can regrow from tiny fragments. A spray that only burns the leaves does nothing to that root mass. Mowing over it can spread pieces of stem to new spots.
It loves warm, humid, wet stretches and lawns a little thin from acidic soil. Buttonweed moves into the gaps a stressed lawn leaves open.
What It Actually Takes
Killing it for good takes a specific herbicide mix and more than one application timed to the weed's growth cycle, not the calendar.
A dense, healthy lawn helps limit the open space where weeds establish. Match mowing and fertilizer to your grass, address drainage problems, and use a soil test before adding lime. Some lawn grasses naturally prefer acidic soil.
If You Are Already Fighting It
Stop mowing over it more than you have to. If two rounds of store spray have not touched it, call me. I will look at the yard and tell you straight what it will take.
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