How to Get Rid of Wild Onions in a Flower Bed


Wild onions are persistent weeds that grow in lawns and flower beds. Wild onions often grow in clumps and are easily identifiable their thin, spear-like leaves that have a waxy coating. Wild onions are difficult to remove because it is hard to pull up the weed without leaving some of the roots behind. Also, the waxy coating on the leaves makes it difficult for herbicides to penetrate. When combating wild onions, a multi-faceted attack is often the most successful. Begin your campaign against wild onions in either the spring or the autumn when the plant is weakest.

Things You'll Need

  • Spade
  • Herbicide with 2,4-D and dicamba
  • Dig up as much of the plant as possible with a spade. Do not pull the weeds out of the ground by hand because the bulb will pull away and spread seeds. You will be inadvertently helping spread more wild onions this way.

  • Do not shake the dirt off the plant when you dig it up or you may spread its seeds. Do not compost the plant. Throw it away immediately to prevent it from propagating.

  • Apply an herbicide per the instructions on the package, or pour boiling water on the spots where you dug up the onions. Gardening Know How warns both herbicide and boiling water will kill your other plants, so use with caution.

  • Repeat the above steps whenever you see new wild onion plants appearing in your garden.

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