Lye to Kill Grass & Weeds

Published: Aug 19, 2011
Updated: Nov 20, 2021
1 minute read

Features

Lye is a strong base. In the oven and drain cleaners in which it is typically found, lye has a pH of 13 or 14, making it extremely alkaline.

Effects

When applied directly to a plant or a weed, lye does serious damage to its living tissue. Death is the inevitable result. For those seeking a quick solution, lye can be beneficial.

Warning

Avoid pouring lye directly on the soil, as you can unintentionally kill or harm other plants growing in your garden. When poured directly on soil, it raises the pH of that soil, thus depriving plants from getting the nutrients they need to survive. Lye should thus be used carefully and in moderation as a plant and weed killer.

The Drip Cap

  • Lye, also known as sodium hydroxide, has many uses and is more typically found in drain and oven cleaners.
  • In the oven and drain cleaners in which it is typically found, lye has a pH of 13 or 14, making it extremely alkaline.
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