pure sativa in BURMA...14 days flowering but no bud

hello..i have burmese pure sativa which is 6' tall.. it's outdoor in a pot. i put that in the flowering box to make it 12/12 for a week.now i can't use the box nomore cuz the plant is taller than my box and the box got no air circulation..so i have to put it back outside and follower with the natural.. so i can't make 12/12 anymore.. i can only see pistill all over the newgrowth... it's been flowering for 2 weeks now and i haven't seen any bud yet..and i'm in burma right now..i got 13.5 hours of light a day.. is that ok to flower? why it takes so long to see the bud..is that normal? someone pls advice me...

I know everyone says to to go 12/12 to stimulate flower but plants flower with 13 hours of daylight naturaly. You should be okay.

It takes about two weeks for most to transition and longer for some sativas. I hope you are not complaining! Thats free veg time.
Put that thing in the ground. If thats not an option, I would at least bump it into a 15 gallons bucket or larger. It probably will take another 2 months at least.
Id like to see some pictures