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Garden Spray

Kirk’s remedies and recipes are suggestions provided by customers like you and are in no way guaranteed to work for all.

Kirk’s will help keep pests out of your garden. For more than 100 years, southern gardeners have relied on Kirk’s Castile soap as an all-purpose fungicide and insecticide that won’t harm the environment. Dissolving this nontoxic soap in water is a safe, effective way to get rid of fungi, aphids, mealy bugs, spider mites, and much more. Kirk’s recommends that you try a small test patch before use.



Kirk’s Coco Castile Soap (Original or Fragrance Free)



  1. Place Kirk’s Coco Castile Soap in wrapper on a concrete hard surface (like a sidewalk).
  2. Gently hammer the soap allowing it to crumble in the wrapper.
  3. Pour the hammered chunks in a wide mouth gallon container and fill it with hot water.
  4. Let it sit for a week.
  5. Run the mixture through your blender and dissolve any lumps.
  6. Pour the thick mixture back into the gallon container for storage where it will thicken.
  7. Dissolve one cup of soap concentrate in one gallon of warm water.
  8. Fill you garden sprayer and spray plants accordingly.
  9. This mixture will help you kill aphids, powdery mildew, suppress black spots and fungus.

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additional tips

Best to use when hot and humid.
Spray bushes till they are dripping.
Spray when you won’t be watering for a few days.
Blackspot lives in the undersides of the leaves so aim spray accordingly.
Kirk’s garden spray is a non-burning spray so experiment with stronger & weaker solutions.

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