The colors vary from dark green to purple. Move at a consistent speed with the sprayer tip about two feet off the ground and cover the entire area affected. In 2009, she received master gardener certification from the Master Gardeners of Summit County, Ohio. An alternative and natural way to kill ground ivy is to smother Creeping Charlie by blocking all sunlight from reaching the vines. Doing so will help reduce the chance of potential injury to grass and improve the herbicide's effectiveness in killing creeping Charlie. It’s most effective for you to spray your creeping Charlie in the fall, disrupting its preparation for the dormancy during the winter. Or maybe you finally got rid of it and want to know how to keep Creepin Charlie from coming back? Leave the covers in place for one week and then check the leaves. The following spring, watch your lawn carefully, and spray again if you see any Creeping Charlie returning to your lawn. Two of the more common broadleaf weeds invading shady lawns are ground ivy and violets.