How to kill common violet weeds in a lawn

Written by kathryn hatter
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How to kill common violet weeds in a lawn
Wild violet weeds can have yellow, purple or blue flowers. (Jupiterimages/ Images)

When you battle broadleaved weeds in a lawn, your fight may span years due to the energetic and stubborn root systems of many weeds. When the common, or wild, violet appears in your turf, you will recognise this weed by its blossoms. Able to spread easily by underground rhizomes, the violet presents a control challenge to the gardener. Kill common violet weeds in a lawn by treating the actively growing plants with a selective herbicide.

Skill level:
Moderately Easy

Things you need

  • Dicamba selective herbicide

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  1. 1

    Apply herbicide to common violet weeds in the fall. Although the wild violets can detract from your lawn's appearance, herbicide is more effective in autumn when the plants are preparing for winter by transporting food down to their root systems.

  2. 2

    Apply the dicamba selective herbicide on a calm, sunny day with temperatures between 15.5 and 26.6 degrees C. Spray the area around the violets thoroughly with the herbicide and saturate the entire plant above the soil level.

  3. 3

    Wait two to three weeks for the violet plants to wither and die back. Reapply the herbicide if any plants remain after this period.

Tips and warnings

  • Using a selective herbicide will kill broadleaved plants only, leaving your grass unharmed. Be careful of overspray if you have other desired plants growing nearby.
  • It is most effective to spray the herbicide onto an actively growing and thriving plant. For this reason, do not trim or prune the violets before spraying.
  • Keep people and animals away from the spraying area until the herbicide dries completely.
  • Wear protective clothing while you apply the herbicide, including long trousers and sleeves, boots and gloves.
  • Follow package instructions carefully to avoid injury or damage to property.

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