Hydrogen Peroxide: Uses and other good stuff to know.

[Stress_test]

I was just printing some of this stuff out that I have saved of time and thought some of you might want to save it too.


Of course if somebody made it a sticky then I could put it all here and delete the files from my laptop.


Mixing charts for gardening with hydrogen peroxide

If you want to start gardening with hydrogen peroxide, you need to know how much peroxide to use. Here are charts to tell you how much!
To water or mist plants, to soak seeds, to add to water used to wash sprouts:

ADD THIS AMOUNT OF WATER TO THIS AMOUNT OF 3% PEROXIDE
1 cup - 1 and 1/2 teaspoons
1 quart - 2 tablespoons
1 gallon - 1/2 cup
5 gallons - 2 and 1/2 cups
10 gallons - 5 cups
20 gallons - 10 cups
bathtub (approx 25 to 35 gallons) *12 to 17 cups * bathtub sizes vary. It is okay to use more water and/or less peroxide.

ADD THIS AMOUNT OF 35% HYDROGEN PEROXIDE
1 cup - 7 to 10 drops
1 quart - 1/2 teaspoon
1 gallon - 2 teaspoons
5 gallons - 3 tablespoons plus 1 teaspoon
10 gallons - 6 tablespoons plus 2 teaspoons
20 gallons - 3/4 cup plus 1 tablespoon plus 1 teaspoon
bathtub (approx 25 to 35 gallons) *1 to 1.5 cups * bathtub sizes vary. It is okay to use more water and/or less peroxide.


To spray on sick or fungusy plants:

TO THIS AMOUNT OF WATER ADD THIS AMOUNT OF 3%
1 cup - 1 tablespoon
1 pint - 2 tablespoons
1 quart - 1/4 cup
1 gallon - 1 cup
5 gallons - 5 cups
10 gallons - 10 cups
20 gallons - 20 cups
Please be mindful to choose the correct column in the chart depending on whether you are using 3% hydrogen peroxide or 35% hydrogen peroxide!!

ADD THIS AMOUNT OF 35% HYDROGEN PEROXIDE
1 cup - 1/4 teaspoon
1 pint - 1/2 teaspoon
1 quart - 1 teaspoon
1 gallon - 1 tablespoon plus 1 teaspoon
5 gallons - 6 tablespoons plus 2 teaspoons
10 gallons - 3/4 cup plus 1 tablespoons plus 1 teaspoons
20 gallons - 1 and 1/2 cups plus 2 tablespoons plus 2 teaspoons
Please be mindful to choose the correct column in the chart depending on whether you are using 3% hydrogen peroxide or 35% hydrogen peroxide!!

As you may notice, the amount of peroxide in the chart for sick and fungusy plants is twice as much as in the first chart. I have heard of people using stronger solutions, but more is NOT always better. So be careful, and when in doubt, stay safe. You can always apply more another day. If you decide to use a bit more, please make it only a bit more, don't get carried away. Gardening with hydrogen peroxide is great, but too much can harm your plants. 10% hydrogen peroxide is recommended as a week killer -- in other words it will kill your plants at that concentration....

Another source says:

To prevent bacterial and fungal problems on outdoor plants use hydrogen peroxide! Hydrogen peroxide will prevent the disease spores from adhering to the plant tissue. It causes no harm to plants or soil, however don't use on young transplants or direct seeded crops until they have become established. Warning: Always test on a small portion of plant tissue first to check for any negative reactions. Do not proceed if there is any damage to plant tissue. Do not substitute food grade H2O2 for the common H2O2. Spray plants with undiluted 3 percent hydrogen peroxide that you can buy most anywhere. Be sure to cover tops and bottoms of leaves. Do this once a week during dry weather and twice a week in wet weather. This works as a preventative. If you already have problems use this as a direct treatment.


I'll post up some more of the recipes I have used and tested later.

 

[houdini]

I was just printing some of this stuff out that I have saved of time and thought some of you might want to save it too.


Of course if somebody made it a sticky then I could put it all here and delete the files from my laptop.


Mixing charts for gardening with hydrogen peroxide

If you want to start gardening with hydrogen peroxide, you need to know how much peroxide to use. Here are charts to tell you how much!
To water or mist plants, to soak seeds, to add to water used to wash sprouts:

ADD THIS AMOUNT OF WATER TO THIS AMOUNT OF 3% PEROXIDE1 cup 1 and 1/2 teaspoons
1 quart 2 tablespoons
1 gallon 1/2 cup
5 gallons 2 and 1/2 cups
10 gallons 5 cups
20 gallons 10 cups
bathtub (approx 25 to 35 gallons) *12 to 17 cups * bathtub sizes vary. It is okay to use more water and/or less peroxide.

ADD THIS AMOUNT OF 35% HYDROGEN PEROXIDE
1 cup 7 to 10 drops
1 quart1/2 teaspoon
1 gallon 2 teaspoons
5 gallons 3 tablespoons plus 1 teaspoon
10 gallons 6 tablespoons plus 2 teaspoons
20 gallons 3/4 cup plus 1 tablespoon plus 1 teaspoon
bathtub (approx 25 to 35 gallons) *1 to 1.5 cups * bathtub sizes vary. It is okay to use more water and/or less peroxide.


To spray on sick or fungusy plants:

TO THIS AMOUNT OF WATER ADD THIS AMOUNT OF 3%
1 cup 1 tablespoon
1 pint 2 tablespoons
1 quart 1/4 cup
1 gallon 1 cup
5 gallons 5 cups
10 gallons 10 cups
20 gallons 20 cups
Please be mindful to choose the correct column in the chart depending on whether you are using 3% hydrogen peroxide or 35% hydrogen peroxide!!

ADD THIS AMOUNT OF 35% HYDROGEN PEROXIDE
1 cup1/4 teaspoon
1 pint1/2 teaspoon
1 quart1 teaspoon
1 gallon1 tablespoon plus 1 teaspoon
5 gallons6 tablespoons plus 2 teaspoons
10 gallons3/4 cup plus 1 tablespoons plus 1 teaspoons
20 gallons1 and 1/2 cups plus 2 tablespoons plus 2 teaspoons
Please be mindful to choose the correct column in the chart depending on whether you are using 3% hydrogen peroxide or 35% hydrogen peroxide!!

As you may notice, the amount of peroxide in the chart for sick and fungusy plants is twice as much as in the first chart. I have heard of people using stronger solutions, but more is NOT always better. So be careful, and when in doubt, stay safe. You can always apply more another day. If you decide to use a bit more, please make it only a bit more, don't get carried away. Gardening with hydrogen peroxide is great, but too much can harm your plants. 10% hydrogen peroxide is recommended as a week killer -- in other words it will kill your plants at that concentration....

Another source says:

To prevent bacterial and fungal problems on outdoor plants use hydrogen peroxide! Hydrogen peroxide will prevent the disease spores from adhering to the plant tissue. It causes no harm to plants or soil, however don't use on young transplants or direct seeded crops until they have become established. Warning: Always test on a small portion of plant tissue first to check for any negative reactions. Do not proceed if there is any damage to plant tissue. Do not substitute food grade H2O2 for the common H2O2. Spray plants with undiluted 3 percent hydrogen peroxide that you can buy most anywhere. Be sure to cover tops and bottoms of leaves. Do this once a week during dry weather and twice a week in wet weather. This works as a preventative. If you already have problems use this as a direct treatment.


I'll post up some more of the recipes I have used and tested later.

You should also add a warning about using 35% H2O2. Pretty strong stuff that will burn skin on contact and blind you if it gets in your eyes. AND, if you wish to dilute 35% h2o2, always add it to plain water, NOT the other way around !

 

[MIway]

You should also add a warning about using 35% H2O2. Pretty strong stuff that will burn skin on contact and blind you if it gets in your eyes. AND, if you wish to dilute 35% h2o2, always add it to plain water, NOT the other way around !

that was a flashback to hs chem... lol

don't think peroxide will react like a strong acid... pretty sure you don't have to worry about an explosion. i still remember 'do what u outta, add acid to watta'... we were a phonics charter school & all... ;-)

 

[Stress_test]

You should also add a warning about using 35% H2O2. Pretty strong stuff that will burn skin on contact and blind you if it gets in your eyes. AND, if you wish to dilute 35% h2o2, always add it to plain water, NOT the other way around !

Ummmm, I have never seen any type of warnings to that effect.
In fact I frequently use 35% H2O2 for mouthwash and disinfectant for cuts and injuries.

35% H2O2 is food grade and is used everywhere. Thousands of water districts use 35% in their water supplies as a replacement for chlorine. It's used in honey, it's used to kill harmful mold in buildings even. Hell even most skin and eye wash solutions are nothing more than saline and 35% H2O2.

I think maybe you are thinking about industrial Ammonia?

 

[RubeGoldberg]

35% will dissolve concrete, depends on what its coming into contact with.

 

[houdini]

Ummmm, I have never seen any type of warnings to that effect.
In fact I frequently use 35% H2O2 for mouthwash and disinfectant for cuts and injuries.

35% H2O2 is food grade and is used everywhere. Thousands of water districts use 35% in their water supplies as a replacement for chlorine. It's used in honey, it's used to kill harmful mold in buildings even. Hell even most skin and eye wash solutions are nothing more than saline and 35% H2O2.

I think maybe you are thinking about industrial Ammonia?

If you were to use 35% H2O2 as a mouthwash you would either kill yourself or be seriously injured. PLEASE, we must be talking at cross-purposes. You might use 3% H2O2 as a mouthwash OR 35% DILUTED to 3% or less. I guarantee you that a 35% strength will burn your skin seriously. Google it man, its all out there.

 

[Stress_test]

Okay I checked and you're right, I use 3% for mouthwash.
But I use 35% in the garden and aside from getting a drop in my eye once, have never have any adverse effects from it.

Here is the MSDS on 20 - 40% H2O2 though: http://msds.fmc.com/msds/100000010225-MSDS_US-E.pdf
If you scroll down to item 11 it helps put things into perspective. The nutrients I use have more severe warnings than H2O2 does.

 

[eloquentsoution]

h2o2 will kill all beneficials as well.

edit: so best to use only when a problem exists, then you will need to feed the soil to replenish the beneficials.

 

[trichrider]

have you an explanation as to why it works wonders?

not trying to bust your balls, was just curious.

thanks for the info.

peace

 

[MacGyver420]

yea i can confirm that the 35% h2o2 will burn the SHIT out of your skin;

will turn any part of the skin it touches off white for around 20-30 minutes and it burns like hell; wear gloves!

 

[Nondual]

h2o2 will kill all beneficials as well.

That's not true and simply misinformation. You can use H2O2 to adjust the solution ORP value before watering/fertigating plants. I talked to Solvay directly, one of the world's largest peroxide producers, on a research project when experimenting with calcium peroxide in agriculture and their recommendation is to use 50% H2O2 AND high heat to sterilize fruit juice box containers. Good luck sterilizing soil with H2O2 and doubt you can sterilize a hydro enviro with it.

 

[Greenheart]

A few weeks back I decided to try pure h202 when battling some RA's. I trimmed all rootballs and dunked them for about 1 minute each and repotted in fresh soil.

I lost 3 plants the rest have survived. My plants were already weak at the time of treatment and the soil was gummy from diatomaceous earth and various oil residues which seemed to form a clay substance when combined. There was also heavy leaf loss. I nursed most of them thru with foiliar feeding and little to no watering unless they were almost dry. One of my losses was due to not recieving water in time. The other 2 had a low chance to begin with.

Others may want to do further testing but so far I am led to believe using pure 3% h202 will not kill the plants unless they are pretty much too weak to survive already.

As far as what it kills I haven't seen anything other than a small portion of the ladybug colony crawling or flying for weeks. Time will tell but at least the plants are starting to recover.

-GH-

 

[Green 4 Good]

I talked to Solvay directly, one of the world's largest peroxide producers, on a research project when experimenting with calcium peroxide in agriculture

How did those experiments go? Do you see a useful application for cannabis?

 

[Scottish Research]

H202 is very helpful.








R.Fortune

 

[Nondual]

How did those experiments go? Do you see a useful application for cannabis?

Calcium peroxide is pretty cool stuff. Best used in a container down low where less of a tendency to be aerobic. Problem is that since a Ca source you need to figure in to your buffering and when the Ca get's 'used up' can be a pretty wicked pH shift. I know Solvay has done some tests outdoors on tree transplants and pretty good results. If using calcium peroxide go for the granules and not powder so a better time released effect. Also the lower the pH the faster it will react out and also the more H202 that's created instead of straight O2...if I'm remembering correctly. Pretty sure in a highly microbially active enviro, like a good organic soil mix, the stuff can react out in about 4 weeks so might be cool if you're transplanting pretty regularly but for sure won't last an 8 week flower cycle.

Oh BTW CaO2 sales are regulated in some areas because it can be used to make peroxide bombs.

 

[silver hawaiian]

I saw this thread, thought "Hey, that's helpful," clicked on the link, and while the page loaded, I thought "I bet Stress_ started this thread.."