Yes, it's too late...unless you try lowryder, finishes in 8 weeks.....but I have found it is closer to 10 weeks. If you can plant in less than 2 weeks you will have a shot at harvest in mid September...any other strain would put harvest into October and the chance of a frost by then is too great. It would be a shame to grow only too see it die prematurely.

I have only grown indoors so others might have a better idea...that's my 2cents...good luck.