Best solution for Creeping Charlie and Violas in grass?

One control option is to dig out existing ground ivy or violets. Pull up all the roots and stems or the plant will grow back. This option works well if ground ivy has gotten a foot hold in a flower or shrub bed, and you can prevent the spread into the lawn. If you are starting a lawn using organics, it is important to rid the lawn area of creeping Charlie and violets before you establish the lawn.

Although control is difficult, existing ground ivy and violets can be treated with postemergence broadleaf herbicides in the period from mid-spring to early summer and/or mid to late fall. Regardless of the time, make sure the weeds are actively growing. For ground ivy, herbicides should contain dicamba. Three-way broadleaf herbicide combinations (one product containing all three herbicides) that include 2,4-D (2,4-dichlorophenoxyacetic acid); mecoprop or MCPP (2-(2-methyl-4-chlorophenoxy) propionic acid); and dicamba (3,6-dichloro-o-anisic acid) may provide the best control. Several of these three-way herbicides are available.

Check product labels for these active ingredients. Read and follow all label directions. Herbicides containing 2,4-DP or triclopyr may also be effective. For violets, broadleaf herbicides containing triclopyr are suggested. Professional turfgrass specialists available for hire may use products containing 2,4-DP or triclopyr.