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How to Kill Leyland Cypress With Salt Water

Updated February 21, 2017

Salt kills vegetation and plant life. If you have a leyland cypress that has become too unmanageable or is blocking sunlight, salt is a natural and effective way to get rid of it. Using salt water, you will avoid using chemicals in your yard, but be careful about the method you choose for applying the salt. It can kill nearby plants if you're not careful. Although watering the ground around the trunk with salt water will kill the tree, it will also kill any surrounding grass and will stay in the ground for awhile, preventing anything new from growing.

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Use a long drill bit to drill a ring of holes near the base of the tree at a 45 degree angle, facing downward.

Mix two parts water with one part salt.

Pour the salt water into the holes.

Plug the holes with mud. After a few weeks, the tree will be dead.

Tip

You can use sand instead of mud to plug up the holes if you desire. Gypsum can help soil heal from salting after the dead tree has been removed if there are any lingering issues.

Warning

Be sure you want the tree to die; you can;t reverse the process after pouring in the salt. Be careful not to let salt water slosh out as you carry the salt water to the tree.

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Things You'll Need

  • Drill
  • Salt
  • Water
  • Mud

About the Author

Antonia Sorin started writing in 2004. She is an independent writer, filmmaker and motion graphics designer based in Raleigh, North Carolina. She has completed work for the Long Leaf Opera Company, the former Exploris Museum and the Leukemia and Lymphoma Society. She graduated from Thomas Edison State College in New Jersey with a Bachelor of Arts in communications.

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