When tiny, lavender flowers invade your pristine lawn, take fast action to eradicate them before they acquire a stronghold. Wild violets possess virulent root systems, capable of spreading throughout a lawn and choking out your desired groundcover. Kill wild violets by using an herbicide with a special formulation that will remove the weeds without harming your grass. With persistence and effort, you can reclaim your lawn and say goodbye to stubborn little violets.
Select a calm and sunny day in the spring when the wild violets are growing actively. Choose a day with temperatures approximately 70 degrees F when you do not expect rain within two hours of the herbicide application.
Spray the herbicide onto the wild violet plants, saturating the leaves, blossoms and stems thoroughly.
Wait for at least two hours before watering the lawn, or you may wash the herbicide away.
Monitor the effects of the herbicide application over the next six weeks. If the wild violets do not show significant deterioration and yellowing, reapply the herbicide a second time.