ok, thats the day lenght outside right now right here, everything (sativa too) flowering just fine. Often I ajust my times with a GPS sun up and sun down times. i get longer flower times for some plants that need it this was also incresses potency due to the fact the plant grows longer. you just have to try it My first time was with White Rhino cause of the breeders advice. every said that rhino was like no rhino ever, people were suck to tables and chairs.