flowering outside

i want to force flower outside, days too long to do it under normal conditions at moment, what can i cover my plant up with so it gets the right amount of darkness, its only one plant. Been told im not allowed to have it in the house. . . .

Nice plant.

Yeah, you should be able to flower with a cover over it, but make sure no light interrupts the dark period

you can flip a garbage can upside down and place it over the plant. make sure to remove it once it gets dark out. if you keep it covered to long bad things could happen. it needs fresh air but covering for a few hours to advance flowering should be ok. hope all goes well.