Another chimed in: "I do this! Works like magic on the driveway." Some particularly stubborn weeds may require multiple douses of boiling hot water to fully kill off the roots.

Most winter annual weeds will germinate in late fall, grow during the winter months, and reach a reproductive stage in the early spring. Then they become more problematic, and then senescence, or die ...

you should think twice before using vinegar to kill weeds. While the acidic nature of vinegar is effective at burning the leaves, it does not reach the oxalis bulbs or roots beneath the soil.