a 16 oz cup of the m.g. seed starting mix would do pretty well for about a month before needing to be transplanted to a larger regular m.g. soil pot. (say 2-3 gal.) you could probably then go almost another month without ever having applied fertilizer. After than you will need to start fertilizing, even in m.g. soil. Mary just grows to fast to not use up all of the nutes in a pot after a month or two. If you kept your plants small and went into flower almost as soon as the plant was 12" tall in a 5 gal. pot you could conceivably never have to fertilize at all (all the way up through harvest) just using m.g. soil.
or you could grow a 2 lb. scrogged plant in 4 inch clay pellet hydro setup
some people got skills like that. i still have little to no hydro experience. soil feels so very safe. i love you, dirt.
dirt ----> kiss-ass<---- me