6 Best Cornstarch Uses in the Garden

Cornstarch is a natural product used in cooking, but what’s surprising is there are Cornstarch Uses in the Garden. Find them in this article!

Cornstarch Uses in the Garden

Cornstarch is a fine powder obtained from corn. It’s a popular thickening agent in recipes, and you can find it in almost every kitchen shelf. Beyond the kitchen, it’s also used in many home hacks. But do you know this natural ingredient is useful in your yard as well? Continue reading Cornstarch Uses in the Garden below to find out!

Check out our article on Vicks vapoRub uses in the garden here

Cornstarch Uses in the Garden

1. Repel Garden Pests

Sprinkle a layer of Cornstarch on the leaves of plants to get rid of worms. This chemical-free method will suffocate and make it difficult for insects to crawl on stems and leaves.

2. Grow Seeds Faster

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If you have planned to grow corn, tomatoes, or beans, then dip their seeds in a corn starch paste before planting. This cornstarch solution will keep the seeds warm and helps seeds to sprout quickly.

3. Improve Sandy Coastal Soil

According to research at North Carolina Agricultural and Technical State University, soil amendment such as corn starch, corn stalk, and cotton meal improve the soil structure and boost the root growth.

Corn starch contains the highest amount of dissolved organic carbon leached and soil penetration resistance.

4. Reduce Water Usage

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Adding corn starch to container plants helps in restoring the moisture and minimize the frequent watering needs.

  • Mix two tablespoons of corn starch in a one-gallon pot.
  • For a five-gallon pot, add 1/4 cup of corn starch.

5. Control of Nitrogen Pollution

High urea inputs in the garden work as a pollutant and damages natural resources. According to a study, using corn starch can reduce the reactive nitrogen pollution caused by the urea application.

6. Effective Against Ants

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Cornstarch can be very effective against ants. They get attracted and eat it but can’t digest it and die slowly. Plus, ants’ habit of taking their food back to their colony could ensure the rest of the ants are taken care of too. But it’s a slow process.

See more effective and natural ant killer ideas here.



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