I just finished Nirvana NL and although its advertised as a 7-9 week flowering strain the pheno I grew out could have used another week or 2 more, and I chopped at 65 days. It was a very vigorous grower and the main cola ended up being almost a foot a half so I figured it would be my highest yielder. Nope, the buds didnt come out as dense as my other 2 plants but that being said its still a good high and I would recommend it, just make sure you give her enough time to fully finish. I would have loved to see how she would have turned out with another couple weeks or so.
Check my journal for pics