Aussie help pls

I’m on the opposite side but I had ones start flowering mid august and others not start for another 3 weeks or so

I’ve seen studies that indicate a wide range of flowering trigger dark cycles... Some will initiate flower around 14.5 hours light/9.5 dark. I think that was the most extreme one. But my point is there was a range between 12-14 daylight hours that triggered it.. so possible strains in the past you’ve run have just been a quicker flower trigger. Maybe something is interrupting it’s dark cycle because that’s the key is the dark cycle not the light cycle.. any bright lights out there?

The only option would be artificial shading to reduce the light hours and thus force the flowering. Good luck!