How to Use Peroxide for Plant Food

Hydrogen peroxide (H2O2) is a cluster of hydrogen and oxygen molecules. In nature, hydrogen peroxide is found in rainwater and is very beneficial for natural vegetation. The tap water we normally use to water our plants does not contain hydrogen peroxide, but it can be added to enrich the water. Peroxide helps maintain healthy soil and allows roots to breathe better. Peroxide can be used as plant food for any types of indoor as well as outdoor plants.

Things You'll Need

• 35 percent food-grade hydrogen peroxide
• Watering can
• 32 oz. spray bottle
• Wood stirring stick
• 10- or 20-gallon garden hose attachment

Instructions

1. Purchase 35 percent food-grade hydrogen peroxide. The kind commonly found at drug stores (three percent) often has additional chemicals and should not be given to plants. Thirty-five percent hydrogen peroxide is available at hydroponics supply stores.

2. Add 2 tsp. of peroxide per gallon of water for potted plants. Add 1/2 tsp. of peroxide to a spray bottle full of water for spraying leaves. Double these amounts and spray on plants to treat fungal infections or moldy soil. Stir the water and peroxide mixture with a wooden spoon or stick.

3. Water your garden and lawn with peroxide using a fertilizer spray attachment on your hose. Add 6 tbsp. plus 2 tsp. of peroxide and fill the rest of the attachment with water for a 10-gallon spray attachment. Use 3/4 cup of peroxide in a 20-gallon spray attachment.

Tips & Warnings

• Hydrogen peroxide is corrosive and should be handled with gloves. Avoid skin contact, swallowing and keep out of reach of children.

References

• Using Hydrogen Peroxide in Hydroponics Gardening System
• Benefits of Hydrogen Peroxide
• Mixing Charts for Gardening With Hydrogen Peroxide