yeah i am also from the north eastern mn area and started my babies april 21 indoors and didnt move them outside till end of may, out of the three different strains i have growin...power skunk, pure power, and some random afghan beans i pulled out of a sac...... they didnt show sex till about 2 weeks ago, i finally have my first confirmed females, 2 being the afghan strain and 1 being my power skunk. I still have a few more plants left to go in showin obvious sex which worries me about being able to harvest in time. My skunks are over 7 feet tall now and my Afghan strain is about 4-4 1/2 feet tall. Also my pure power was supposedly a feminized seed and it still shows no sign of sex yet and seems almost stunted (about 3 n 1/2 feet tall) but it's finally takin off good now that i got it some good vegin food in it a month ago...now i just gave them their initial flowering feeding of Fox Farm Big Bloom which I am hoping will speed things up a lil or at least pay off with a larger harvest . But checking that site listed above showing the freezin dates i am afraid if i will have any mature plants in time! ...........
I included pics of one of my flowerin afghans ( the first one), (2nd pic) is my pure power, and 3rd pic is my whole garden in general.