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How to Kill Grape Hyacinths

Updated February 21, 2017

Grape hyacinths (Muscari armeniacum) are not true hyacinths, but members of the lily family. They are prized in many landscapes for their beautiful clusters of blue bell-shaped flowers. Since they grow from bulbs that self multiply, if left on their own the plants can overtake a garden. If you want to kill your grape hyacinths, there are several ways to do so. Select one method and you should be rid of them soon.

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  1. Mow grape hyacinths along with your lawn. If they are in an area where you can't mow them, cut them to the ground with pruning shears. Every time the grape hyacinths begin to grow again, mow or prune them. Eventually, they use up their energy reserves and die.

  2. Dig grape hyacinths up. Bulbs are typically planted about 3 to 4 inches beneath the soil. Remove all the bulbs and toss them out or give them away for others to enjoy.

  3. Apply a herbicide that contains 2,4-D to the grape hyacinth's foliage. You must mix in a wetting agent or surfactant, available at garden centres, to the herbicide to improve the foliage's ability to soak in the herbicide. Follow the mixing and application instructions of any products used. If you live in a climate with lots of rain, this method may not work since the herbicide may be washed away before it is absorbed.

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Things You'll Need

  • Mower or pruning shears
  • Shovel, spade or trowel
  • Herbicide
  • Wetting agent or surfactant

About the Author

Melissa Lewis is a former elementary classroom teacher and media specialist. She has also written for various online publications. Lewis holds a Bachelor of Arts in psychology from the University of Maryland Baltimore County.

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