either way it shouldn't really matter. most flower foods are just lower in nitrogen and higher in phosphorus. their should still be nitrogen builtup in the soil. just hit it with the grow right before you put it into flower, and when it's the next time to add nutes use the flower formula.

-shake
headshake Reviewed by headshake on . When do i switch food? Hey guys, Im currently using and will only use Pure Blend Pro Gro and Pure Blend Flower. My question is when do i switch from using the Gro formula and use the Flower one? I just started to force 2 days ago. Since ive switched to 12/12 my plants have just exploded with new undergrowth and have sprouted between 1 and 5 inches. (only 2 dark periods so far) Thanks Rating: 5