fertilizer/nutrient changes

i and currently using miracle grow fertilizer for flowers and i know its not organically approved but it is all i have right now. if i do get money and buy fertilizer from a hydroponics store will the change in fertilizers shock my plant? if so what signs of shock should i look for?

I would flush the plant to get the salts out(miracle grow is horrible about that) then water twice with plain ph'd water then start the new nutes after that.you could probably go strait to the new nutes as long as you flush them and let them dry out a lil but im cautious personally.