CoastGrower

It could also be a PH problem, when the PH is wrong the plant will stop taking in nutrients. Hope it gets better!

@CoastGrower, I was thinking the same thing, but this is the only plant out of 4 that's doing this. I also grew this exact strain last year under pretty much identical conditions and she didn't start flowering until mid-August. Maybe she will re-veg, but if not it is what it is. Truth be told, I'd rather harvest in September than rolling the dice with October weather. Thanks for the input and comment. Cheers!

Nice plants! Before you put them outside they had 18hours of light, now only 15.. maybe that’s the reason why they are showing signs of early flower. Good luck!

Looks great!