Learn which plants thrive in your Hardiness Zone with our new interactive map!

How to Make Pepper Spray for the Garden

By Sharon Sweeny ; Updated September 21, 2017

If some of the neighborhood critters are wrecking havoc in your garden, it's possible to deter them with pepper spray. Make it with hot chili peppers and it will contain the same chemical that is the active ingredient in commercially available pepper spray, commonly used for self-defense. Small animals will leave your plants alone after they experience the heat of the pepper spray.

Chop one cup of medium size hot peppers, any variety, but the hotter the better. Put into a blender with about 2 ounces of water. Puree.

Strain out the solids through a piece of cheesecloth, keeping only the strained liquid. Add this to 1 gallon of clean, fresh water and let the mixture sit overnight.

Mix ΒΌ cup of the mixture from Step 2 with another gallon of fresh, clean water and one tablespoon of horticultural insecticidal soap.

Fill a plastic spray bottle with the mixture mixed in Step 3. Spray on plants. Repeat every few days or after rain.


Things You Will Need

  • Hot chili peppers
  • Blender
  • Cheesecloth
  • Horticultural insecticidal soap
  • Large plastic containers
  • Plastic spray bottle


  • Wear gloves when handling hot peppers.
  • Do not get this solution in your eyes. It will burn.

About the Author


Sharon Sweeny has a college degree in general studies and worked as an administrative and legal assistant for 20 years before becoming a professional writer in 2008. She specializes in writing about home improvement, self-sufficient lifestyles and gardening.