blue cheese flowering after only 5 weeks

i have a blue cheese plant that i started from seed on 3/20/2014, its now into third week of flowering. every thing looks great, plant is health and happy. its hight is about 60 cm. first outdoor grow for me. is that normal for blue cheese to flower after only 4-5 weeks of vegging (although it saved me trouble cause the other one was a male so i didnt waste to much time growing it before taking it out).
would appreciate some Experienced growers answers.
peace

if you are outside, and you put it out a while ago, i'm afraid it's too early, it's flowering because of the short days it had/has. Hopefully it'll just keep flowering instead of stopping and re-gen'ing. You need to start a lil later, obviously it also depends on where you live too, and I don't know enough about the bluecheese to tell you how much dark triggers it.

What he said!

thanx guy for replies. i live in a desert area so i cant wait till may. temps here are around the hugh 90's on april and the get even up to 120-130f on july and august.
i plant on late march every year' starting on the 20th when day/night are 12/12 and its going up to d14/n10 till june 20th then it starts droping back to 12/12 on september and n14/d10 on december. all plants i planted never flowered untill like late may or mid june wich is ok being at least 8 to 10 weeks veggin. this is the first time i grow blue cheese and i was surprised to see it flowering at only five weeks from seed. its now into its 8th week from seed and it already has a massive flowering and showing all signs of just keeping at it. i have no problems with flower and reveg and then flower again. last winter i did it deliberately (indoor grow though), and the plants just bursted with multiple rewarding flowering colas. (even though it delayed harvest in an extra month)
anyway i thank you guys, and i will sure keep an update on that.
peace

here are some low quality pics of the plant (7-8 weeks from seed)