12/12 is meaningless outside. It's flowering for dummies, a one size fits all solution under which all strains will flower but, a solution few, if any, need.
Outdoor flowering periods also (or should) begin with the light flip, that flip being the June/Dec equinox depending on your hemisphere. Because flowering is triggered by shortening days, the day the days become shorter should be considered the beginning of the flowering period. Any other time would be capriciously arbitrary.
Outdoor flowering periods also (or should) begin with the light flip, that flip being the June/Dec equinox depending on your hemisphere. Because flowering is triggered by shortening days, the day the days become shorter should be considered the beginning of the flowering period. Any other time would be capriciously arbitrary.