Where to buy single fertilizers like Calcium Nitrate, Copper Sulfate and etc??

MeJuana

Well-Known Member
I want to buy single fertilizers in person (not online) and I am in the San Fernando Valley, California or near Los Angeles.. Where do you find single fertilizers from? Calcium Nitrate, Mono Potassium Phosphate and the trace elements.. I thought feed stores, I searched online and etc but very hard to search for.
 
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