Carpetweed (Mollugo verticillata) forms a rounded, close-to-the-ground mat as its stems radiate from the center of the plant. An annual native, carpetweed has tiny, white flowers with five petals and tongue-shaped leaves. It grows from a taproot and it spreads by seed. It is particularly fond of recently disturbed soil, such as in new garden beds or lawns.
The best way to control this weed is to keep it from germinating. Preen Garden Weed Preventer keeps weeds from germinating for up to three months. Always read and follow the label directions.