Lawn Challenge - Broadleaf Weeds Herbicides can be useful to control existing broadleaf weeds.
Ground ivy spreads via creeping stems that propagate new plants.
Knotweed will thrive on compacted soils, such as along sidewalks. Lots of clover in a lawn often is a sign of low soil fertility. Broadleaf plantain is a common broadleaf weed in lawns. Broadleaf herbicide drift can damage ornamental plants. Common weeds controlled by these herbicides are found below.