Q.% Of Water To A Tea Spoon Of Hydrogen Peroxide
Percentage of water to a three percent peroxide
Certified GKH Gardening Expert
Three teaspoons of water to one teaspoon three percent peroxide will be appropriate if you are using this as a way to remove soil contamination. Generally, I use one part peroxide to three parts water. You can go as diluted at one part peroxide to ten parts water and still be effective, though.
Here is an article that will help you with its use: