It is not a good idea. Why do you want to risk your health creating your own brew? Maybe purchase the liquid fertilizer and use per the instructions.

Sorry about your health, but maybe use some common sense?

Jim, why?

i dont see why not ...

i used to make a full dose gal of water sol fert in a milk jug... and then just splash a bit into my quart watering can ... my goal wasnt more than 1/4 strength anyway ... but applied with each watering ... [so my one gal could make 4 gals ... or 16 quart water cans.. if i am doing my math right this morning.. before coffee .. lol]

short of the water growing algae ... i dont see how it could go bad ...

ken

There should not be a problem as long as the liquid is concentrated. Also it cannot be too concentrated in water. Solubility of salts in water is temperature dependent. Warmer the water more salts will dissolve. So if the solution is too concentrated and temp drops then some of the salts in solution will go back to its crystal form and precipitate at the bottom.

But you should be able to make a 20x concentrated or even more solution of MG powder and store it for future use with no problems. It will not go bad or lose its properties. Algae will not be able to grow in such a concentrated solution. But still a good idea to store it in a dark place.

Molly, I'm so sorry for Jim's rude response. Please don't let that prevent you from returning here if you need help.

I agree that there is no problem in preparing a concentrated solution in advance. Be sure to keep track of the ratio so that you know how much to dilute it later on. I would not make too much at a time and maybe find a cupboard in a temperature controlled part of your home to store it in.

Mollie, please do not jeopardize your health. I recommend following the instruction.

If you like Miracle Grow, they sell liquid concentrates, designed for your use.

Stay well.

Thanks to all of you for your comments. Perhaps I should have mentioned that my husband, who has no respiratory issues, would prepare the concentrated solution. We have quite a bit of MG and Jack's Bloom Booster on hand and were thinking of ways to use it without my breathing in the dust--and yes I have been using a mask but the mixing process was still troublesome. Again, thank you!!

I do not know if hydrated Miracle Grow will grow “beasties”;, mold, fungus, mildew, etc.

I looked at the ingredients on my dry and liquid concentrate, both had the same “active” ingredients. I was looking for a preservative in the liquid.

Jim: So it begs the question: why are you so keen on advising on something you do not know anything about according to your own admission? It is not a coincidence that both versions have the same thing. There is no need for preservatives at those concentrations - why do you think it needs preservatives? Developing common sense requires one also knows basic of science or spend time researching. So my advise to you is do your homework first before dishing out some random advise.

The liquid version is just the solid version dissolved in water at a very high concentration level. It is purely marketing. Solid powder version is what every manufacturer makes and then makes different versions of it for various purposes. There is no need for any preservative since nothing ever will grow in that liquid at that concentration. You can try it home. Add two tablespoon of household salt in one ounce of water and leave it there out in the open and see if anything grows in that. In fact, brine is a disinfectant and so are solutions of the salts that make up a fertilizer. From chemistry point of view they are all salts of various kinds.

The powder/solid version is lot cheaper for obvious reasons. The liquid version weighs more, requires special packaging and so the price is lot more per unit fertilizer. For consumers, it is a matter of convenience which one they want and how much they are willing to pay.

btw .... there is a huge greenhouse operation down the road.. they have these huge tanks of blue water ... maybe 1000 gal ... who knows ...

i never asked.. but presumed.. it was just an injection system for fert into the watering system ... and i am sure they dont empty that every day ... the implication being that it can stand for some reasonable period ...

maybe i will ask next time i am there ...

ken

Saturated solutions will have no problem being stored for months and years in an appropriate inert container. Like table salt most of the salts in fertilizer are corrosive so no metal container can be used. I store mine in those plastic laundry detergent containers. The costco ones even have a convenient dispenser. Every few years I replace the container only because the dispenser stops working properly. Sometimes it is more convenient to use a smaller bottle. I use a kid's water bottle for that
Any plastic container made of HDPE plastic can be used, eg milk, juice, etc. Any thick walled plastic container is usually safe. Plastic bottled water container is not a good choice for long term. Glass is best but obviously fragile.

“Blue Water” in my area is nitrogen