Wild violets bloom in early spring with a dark purple flower. According to Ohio State University, the wild violet may be one of the most difficult plants to remove from the lawn area. The plant propagates through root rhizomes and stolons. The plant is highly adaptable once it becomes mature. The wild violet will thrive in full to partial shade as well as direct sunlight. Two methods exist for the removal of wild violets, mechanical and repeated herbicide applications.
Dig the wild violet plants from the lawn using the shovel. Remove the plant from the area and dispose of through composting.
Pull the plants by hand when adequate moisture exists from rainfall. Keep the removed plants isolated by composting.
Apply the herbicide triclopyr combined with clopyralid. According to Ohio State University, this combination of herbicides has the highest success rates through repeated spray applications. The chemical is found at local home and garden stores under various trade names.
Mix the herbicide according to label directions. Spray on the affected areas of the lawn between late April and mid-June or early September to mid-October. Repeat herbicide applications as required.