Need Help, Question about flowering and finishing

Its my first outdoor grow, I started the plant indoors around February 15 2013 and I placed it outside in the second week of June so its had 16 week of veg. growth indoors and i guessing 8 weeks outdoors, so its has had plenty of time to grow. But winter is coming and soon I will have frost, It can frost around the second week of September were I live. I see 2 white hairs at each joint of the plant but its hasten started producing full flowers yet and I'm guessing it will take about 10 week or longer to finish. But I don't think I have 10 weeks until I start getting heavy frost. The strain is Northern Lights x Skunk the info sais 8 weeks to finish but i be leave that is BS. Today is the first day I gave it flowering nutrients. Should I be worrying yes or no

IMO, there is no way that is not going to finish in 4 weeks. As long as you can keep it covered when it frosts you should be okay unless you get a deep freeze. I'd bank on late sept / early -mid October finish.

Edit-> Nice looking plant BTW.