Here is part of another article entitled "The Many Benefits of Hydrogen Peroxide" written by Dr. David G. Williams. As you will notice he says you can use 16 drops of 35% solution per each quart of water or 64 drops per gallon, this goes right along with the back of my bottle stating 25 to 75 drops per gallon.

Helps Plants
It is this hydrogen peroxide in rainwater that makes it so much more effective than tap water when given to plants. With the increased levels of atmospheric pollution, however, greater amounts of H202 react with air-borne toxins and never reach the ground. To compensate for this, many farmers have been increasing crop yields by spraying them with diluted hydrogen peroxide (5 to 16 ounces of 35% mixed with 20 gallons of water per acre). You can achieve the same beneficial effect with your house plants by adding 1 ounce of 3% hydrogen peroxide (or 16 drops of 35% solution) to every quart of water you give your plants. (It can also be made into an excellent safe insecticide. Simply spray your plants with 8 ounces of 3% peroxide mixed with 8 ounces of white sugar and one gallon of water.)

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"Money won is twice as sweet as money earned"

Great info Sod Buster. Answered all and any questions I might of had about H2O2.

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it is great shit ,my opinion ,i buy it fron the hydro shop and it is strong shit ,many a finger has been turned white from the stuff, but when i used to grow d.w.c it was amazing it really keeps them plants full of oxy ,which is what the brand name is oxyplus ,dont know if you get it in the states ,but sure you have the same thing, i still use it but i now grow in coco coir ,and it is still a good additive if used correctly ,in d.w.c i noticed the roots were always nice and white and healthy ,now i dont see the roots but the plants seem to like it.