But that has gobs of P and almost no K. Monopotassium phosphate is 0-50-30. For a pure potassium hit, try potassium sulfate. That might be hard to find, but every hardware store sells potassium nitrate (as a stump remover), which is 13-0-44. I would find some of that. cnView attachment 2307805 No bull - this is the potassium you need to use. Start of at 1/4 and then 1/2 of what the directions suggest. Work your way up to 1 or 2 teaspoons per gallon.
This stuff is not over priced and does the trick hands down. Works time and time again.
It's potassium sulfate solution. It'll work a treat, but it's a bit pricy compared to hardware-store KNO3. The other advantage, of course, is that as a liquid you can measure it and not need to weigh it or prepare a stock solution. cnLook up Earth Juice Meta K. Best 100% natural source of potassium that you can use.
You may wanna look at the Earth Juice ... twice the K at about half the price. You guys are making me lern stuf cni use this stuff and it works pretty good ime... it's probably much pricier then cn's suggestion, but ...
http://www.hidhut.com/catalog/natures-nectar-potassium-005-quart-p-1087.html?osCsid=6719a4f304e70f5af5ab39c9cac050fc
i'll have to check that out cn.. not sure if my hydro store has it or not.. plus, the quart bottle i have of it will probably last me a lifetime.. but always good to know..You may wanna look at the Earth Juice ... twice the K at about half the price. You guys are making me lern stuf cn
True, but muriate means "chloride". At least as much harm as benefit. It's also available in every grocery store as "table salt substitute", and I didn't mention it because of the chloride issue. Jmo. cnMuriate of potash 0-0-60 should be available at any garden center about $6